20-24 June 2021
Schönbrunn Palace - Apothekertrakt, Vienna/Austria
Europe/Vienna timezone
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Poster Session

Place

Location: Schönbrunn Palace - Apothekertrakt, Vienna/Austria
Address: Apothekertrakt Schloß Schönbrunn, 1130 Wien
Date: 21 Jun 17:30 - 19:30

Timetable | Contribution List

Displaying 39 contributions out of 39
Type: Poster Session: Poster Session
Track: Press Hardening of Coated Steels
Al-Fe alloy-coated steel sheets for hot press forming is manufactured by performing a batch annealing process to the Al-Si coated sheet. It has an advantage of prolonging the mold life by suppressing the reaction between blank and mold. However, Al-Fe alloy-coated steel sheets are inferior in spot weldability to conventional Al-Si coated steel sheets. In addition, welding current ranges decrease w ... More
Presented by Sang-Man YUN on 21/6/2021 at 16:34
Type: Poster (*) Session: Poster Session
Track: In-Line Measurements and Quality Control
Recently GA automotive steel plates require more high-grade products, and thus the defects that occur during press are reported. A lot of complaints are happening. Among them, defects in powder ring are representative, and it can lead to customer's claim through powder ring that occurs during press. GA steel sheets will undergo alloying heat treatment after passing through Pot- Airknife. Before ... More
Presented by Suk KIM on 21/6/2021 at 15:44
Type: Poster (*) Session: Poster Session
Track: Product Modifications on Metallic Coatings (Spangle Size, Solidification Path, Interface Layers, …)
Al-Si coated steel is required to have a beautiful surface according to the application, and spangle size is one of the important factors to satisfy this. To control the Spangle size, Various studies have been conducted. In this study, Conditions of Spangle Minimizer which is using the Al powder spraying method after Al-Si pot were investigated, which is one of the methods to control the spangle s ... More
Presented by Jong Beom LEE on 21/6/2021 at 15:48
Type: Poster Session: Poster Session
Track: Challenges in Galvanizing Advanced High Strength Steels (GI, GA,…)
Dual phase steels are strongly dependent on the microstructure obtained during production to meet the needs in its application and the required mechanical properties. Besides the parameters associated with chemical composition, hot rolling and cold rolling, the process of continuous intercritical annealing directly affects the microstructure and consequently the mechanical properties. In this stud ... More
Presented by Roberta ROCHA on 21/6/2021 at 16:42
Type: Poster Session: Poster Session
Track: Press Hardening of Coated Steels
Hot press forming (HPF) steel has been widely used to produce high strength and complex shaped car parts because it provides high mechanical properties and formability. Process of press hardening is carried out at high temperature over A3 line, which cause the oxidation of the steel surface. Since oxide removal is required for welding and painting, many different coatings have been introduced to s ... More
Presented by Hyeon Seok HWANG on 21/6/2021 at 16:38
Type: Poster Session: Poster Session
Track: Zinc-Aluminum-Magnesium Coatings for Automotive Application
Recently, the demand for high strength hot-dip galvanized steel sheet is continuously increasing due to light weight and safety of automobiles. However, in the case of hot-dip galvanized steel sheet, it is found to have a problem that LME(Liquid Metal Embrittlement) cracks occur during welding process, therefore it is limited to supply to the automakers. The hot dip galvanized steel sheet having a ... More
Presented by Suk Kyu LEE on 21/6/2021 at 16:40
Type: Poster (*) Session: Poster Session
Track: New Technological Concepts
Abstracts The mechanism for the formation of top dross in the zinc pot on a hot-dip galvanizing line was studied. The detrimental effect of the top dross on the coating quality was discussed. The need for the continuous removal of top dross accumulated on the bath surface was emphasized. A novel technology was developed by utilizing a travelling electromagnetic field to guide the motion of the ... More
Presented by Mr. Hongwei QIAN on 21/6/2021 at 15:36
Type: Poster Session: Poster Session
Track: Zinc-Aluminum-Magnesium Coatings for Automotive Application
The effect of Mg and Zn addition on microstructure and corrosion resistance of AlSi based coating for the steel sheet was investigated using a range of analytical methods, scanning electron microscopy (SEM), X-ray diffraction spectroscopy, glow discharge spectroscopy (GDS), and x-ray photoelectron spectroscopy (XPS). This study revaled that the combined addition of Mg and Zn lead to the formation ... More
Presented by Dongmin CHO, Jinseong PARK, Si-On KIM, Sung Jin KIM, Yeongjae JUNG on 21/6/2021 at 16:24
Type: Poster Session: Poster Session
Track: Vapour Deposition - Process and Product
The advanced high-strength steels (AHSS) such as a dual-phase (DP) steel, twinning-induced plasticity (TWIP) steel, and transformation-induced plasticity (TRIP) steel have been used extensively in automotive industries to reduce the weight and to improve the safety of automobiles. To ensure the corrosion resistance of AHSS, the advanced coating materials and coating process to replace the conventi ... More
Presented by SeungHwan LEE
Type: Poster Session: Poster Session
Track: Zinc-Aluminum-Magnesium and Zinc-Aluminum Coatings for Non-Automotive Application
A steel is used in all industries because it has many advantages such as high strength, easy workability and high-quality paintability. Nevertheless, steel can not be used for a long time due to the occurrence of rust caused by various factors. In order to improve the corrosion resistance of steel, the development of a high corrosion resistance steel with Mg and Al is being studied. Also, we shoul ... More
Presented by Bora PARK on 21/6/2021 at 16:22
Type: Poster (*) Session: Poster Session
Track: Challenges in Galvanizing Advanced High Strength Steels (GI, GA,…)
In the automotive industry, the development of advanced high strength steel(AHSS) sheets is continuously required to respond to the environmental issues such as carbon reduction and securing a passenger safety. Various alloying elements such as Si, Mn, Al and so on, are added to improve the strength of the steel sheets, such steel sheets are galvanized to improve the corrosion resistance. It is we ... More
Presented by Min-ho JANG on 21/6/2021 at 16:14
Type: Poster (*) Session: Poster Session
Track: Automotive Corrosion Behavior 
Hot-dip aluminized stainless steels are widely used for automotive exhaust parts by excellent heat and corrosion resistance than ferritic stainless steels. But corrosion behavior of aluminized steels for automotive exhaust gases is considered to be different than conventional corrosive environment. Refer to evaluate the difference of corrosion behavior, two types of corrosion test, such as conven ... More
Presented by Kyung Kwan PARK on 21/6/2021 at 16:16
Type: Poster Session: Poster Session
Track: Press Hardening of Coated Steels
The hot stamping steels are widely applied to improve the safety of automotive and reduce the weight of car body, due to the advantage to perform parts with ultra-high strength and better formability at high temperatures and exhibit no springback on the final part. The Al-Si and Zn-based coatings are developed to prevent scaling and decarburization during hot stamping processes, especially improve ... More
Presented by Kuan Hui HU on 21/6/2021 at 16:32
Type: Poster (*) Session: Poster Session
Track: HDG Process Technology - Furnace, Galvanizing Bath, Coating Weight Control 
The steel surface condition after continuous annealing is extremely important to the quality of galvannealed coating (GA). The presence of oxides can affect the reactions at the coating/substrate interface and decrease the zinc wettability on the steel surface. To avoid oxidation, a protective atmosphere is used during the annealing. Despite this, it is possible the selective oxidation occurs and ... More
Presented by Juliana PORTO GUIMARÃES on 21/6/2021 at 15:34
Type: Poster (*) Session: Poster Session
Track: Structure and Surface Analysis as well as Defect Characterization
A fast and non-destructive method based on X-ray diffraction for phase quantification in zinc alloyed coatings is presented. Post-annealed hot-dip galvanized steel sheets may contain various Fe/Zn alloys (Γ-Fe3Zn10, Γ1-Fe11Zn40, δ-Fe13Zn126, ζ-FeZn13) arranged in a layered conformation and with a predictable stacking order. Each phase within the coating has a different crystalline structure im ... More
Presented by Hugues GUERAULT on 21/6/2021 at 15:50
Type: Poster (*) Session: Poster Session
Track: In-Line Measurements and Quality Control
A large range of digital solutions and equipment exists in order to manage quality requirements of high end products on strip processing lines. But in the end day-to-day users have to juggle between dozens of solutions and finally get lost in trying to link data from different software or finding the right tool adapted to their situation. Solving defect crises requires rather applying the right me ... More
Presented by Maxime MONNOYER on 21/6/2021 at 15:54
Type: Poster (*) Session: Poster Session
Track: Fundamentals on Solid - Liquid Interfacial Reactions
The durability of metals in molten aluminium is of high importance for technical processes. Parts, for example rollers for fire-aluminizing, are exposed to high material abrasion through a combination of wear and metal-physical corrosion by reaction with the liquid aluminium. In this paper, long-term dipping tests were done with different materials in an Al-based metal bath. The used materials wer ... More
Presented by Tobias SIMON on 21/6/2021 at 15:40
Type: Poster (*) Session: Poster Session
Track: New Technological Concepts
In continuous galvanizing lines (CGL), strip annealing temperature is, though not the only one, the most significant physical parameter in the annealing process and therefore is used as the main indicator for product qualification. Annealing furnaces today are mostly regulated by Proportional Integral Derivative (PID) controllers or with the help of static based models. Those methods, though appli ... More
Presented by Cédric PÉROTTET, Francis PRADEL on 21/6/2021 at 15:52
Type: Poster (*) Session: Poster Session
Track: In-Line Measurements and Quality Control
With ever increasing targets on productivity, unpredictable down times caused by a weld break can become an important problem. Lately, partly because of drivers like the rise of multiple high strength steel grades and the retirement of highly experienced operators, we have seen CGL lines experience an increase in weld break events. Technologies like pressure sensors, current sensors, cameras and p ... More
Presented by Choquet MARC on 21/6/2021 at 16:04
Type: Poster (*) Session: Poster Session
Track: HDG Process Technology - Furnace, Galvanizing Bath, Coating Weight Control 
This paper presents a CFD simulation study of the influence of roughness on the flow near stationary and rotating bath equipment. During production, the roughness of bath rolls is significantly increased by dross build-up. The latter is one major reason for undesired maintenance cycles. Understanding the interaction between roughness and zinc flow facilitates the interpretation of dross build-up g ... More
Presented by Georg REISS on 21/6/2021 at 16:12
Type: Poster (*) Session: Poster Session
Track: Challenges in Galvanizing Advanced High Strength Steels (GI, GA,…)
The work studied the effect that processing parameters have on microstructure and mechanical properties of dual-phase steel grade 980. This was achieved by subjecting steel coupons to various annealing cycles featuring different heating rates, cooling rates and intercritical annealing temperatures using a dilatometer. Following heat treatments, the microstructures and mechanical properties of the ... More
Presented by Myriam BROCHU on 21/6/2021 at 15:30
Type: Poster (*) Session: Poster Session
Track: Structure and Surface Analysis as well as Defect Characterization
Little Bright spot defects on galvanized steel sheets were studied by optical microscope, scanning electron microscope(SEM) and Energy Dispersive Spectrometer (EDS) in this study. The research shows that the coating thickness of little bright spot defect is much lower than normal area which caused by the substrate defect justly under little bright spot, and when skin passed, the little bright spot ... More
Presented by Lei CUI on 21/6/2021 at 15:42
Type: Poster Session: Poster Session
Track: Consumer Electronics Application  - Forming, Joining, Painting and Final Properties 
In the past, both galvanized (GI) and galvannealed (GA) steel sheets with white color coating produced by continuous coating line (CCL) has been widely used for home appliance such as refrigerator, washing machine and air conditioner. On the other hand, in premium home appliance market, either mechanically polished or physical vapor deposited (PVD) stainless steel sheets was used due to their aest ... More
Presented by Moon Hi HONG on 21/6/2021 at 16:28
Type: Poster Session: Poster Session
Track: Zinc-Aluminum-Magnesium and Zinc-Aluminum Coatings for Non-Automotive Application
ZnAlMg-based alloy hot-dip galvanized steel sheet, as known, has high corrosion resistance. Also, several types of composition systems are commercially produced and applied to various fields. However, these steel sheets characteristically contain up to 3% magnesium. The improvement of corrosion resistance is the attractive point of the product and the goal to pursue forever. In recent years, there ... More
Presented by HEUNG YUN KIM on 21/6/2021 at 16:18
Type: Poster (*) Session: Poster Session
Track: Fundamentals on Solid - Liquid Interfacial Reactions
The present paper presents a front tracking interface numerical model for the simulation of facetted crystal growth, taken into account the incidence of flow. This model was applied to the build-up growth (Fe2Al5 faceted crystals) occurring during the production of Zn coated steel sheets (Galvanizing industry) on the bath hardware. In the galvanizing industry their occurrence is a problem and the ... More
Presented by Georg REISS on 21/6/2021 at 16:06
Type: Poster Session: Poster Session
Track: In-Line Measurements and Quality Control
In this paper, the computational fluid dynamics method was used to study the influence of the addition of zinc aluminum ingot in a zinc pot. The simulation results show that the natural convection effect changes the flow pattern of the zinc bath around the zinc ignot side, and the cold zinc liquid flows to the bottom of the zinc pot, and a large eddy is formed behind the zinc pot; The whole temper ... More
Presented by Jianfeng HE on 21/6/2021 at 16:08
Type: Poster (*) Session: Poster Session
Track: Fundamentals on Solid - Liquid Interfacial Reactions
Hot dip galvanized steel is widely used in the field of automobile since the galvanized coating layer protects mother steel from corrosion. The molten Zn bath commonly contains small fraction of Al to suppress the preferential formation of the brittle Fe-Zn intermetallic compounds that often provoke flaking off the coating layer during stamping or forming of coated steel. It is well known that min ... More
Presented by Tetsuya HAMADA on 21/6/2021 at 15:38
Type: Poster (*) Session: Poster Session
Track: Thermal Joining (Spot Welding) and Liquid Metal Embrittlement
Abstract: In this paper, Al-Si coated and bare hot stamping steels with the tensile strength of 2GPa were resistance spot welded.The welding current, properties and mechanical performance of the joints were compared. The coating slightly affected the welding current required for the attaining conventionally acceptable weld fusion zone size of 4*square(t), and the welding current range. The energy ... More
Presented by Mingsheng XIA on 21/6/2021 at 16:36
Type: Poster (*) Session: Poster Session
Track: New Galvanizing Lines with Innovative Solutions and New Technological Concepts
The production of galvanized coils requires stable operating conditions for achieving sustainable product quality. In order to reach stable operation conditions for high quality products it is essential to prepare the production process according certain constraints. Those constraints include building schedules with a coffin shape ensuring that width and thickness changes are within certain limits ... More
Presented by Markus RINGHOFER on 21/6/2021 at 15:58
Type: Poster Session: Poster Session
Track: HDG Process Technology - Furnace, Galvanizing Bath, Coating Weight Control 
In the present study Computational Fluid Dynamics (CFD) were used to design a new air-knife for the hot-dip galvanizing simulator of Salzgitter Mannesmann Forschung in order to improve the flow field inside the knife and at the nozzle exit. The overall objectives were to improve the surface quality of coated samples and enhance coating control capabilities compared to the existing air-knife by opt ... More
Presented by Tobias KLINKBERG on 21/6/2021 at 16:00
Type: Poster Session: Poster Session
Track: Process Technology - Pre/Post-Treatment (Strip Cleaning, Skin Passing, Passivation, Oiling)
In the continuous hot dip galvanizing process, the aluminium content and its fluctuation in the zinc pot have a very important impact on the product quality.In this study, the computational fluid dynamics method was used to study the dissolution and diffusion behavior of zinc pot after adding zinc ingot. The simulation results show that the natural convection effect changes the flow pattern of the ... More
Presented by JIANFENG HE on 21/6/2021 at 16:10
Type: Poster (*) Session: Poster Session
Track: In-Line Measurements and Quality Control
Strip thickness in processing lines starts from 0.3 mm or even thinner. Therefore inspecting the strip edge surface is a challenge. The inspection software of Primetals Technologies strip edge inspection device EdgeMon was now improved in order to be able to reliably inspect this product spectrum, too. The paper explains how operators are informed in case of quality issues. Best practice examples ... More
Presented by Helmut HLOBIL
Type: Poster Session: Poster Session
Track: Zinc-Aluminum-Magnesium and Zinc-Aluminum Coatings for Non-Automotive Application
Iron is corroded by various factors such as moisture, salt and air exposure, causing problems in the building's exterior and structure. To solve this problem, studies have been continued about rust-resistant iron. Most of the galvanized steel used for outdoor applications are coated again painting on the galvanizing layer. More than that, Magnesium-added Zn-Al-Mg coated steel sheet is excellent fo ... More
Presented by Se-Young OH on 21/6/2021 at 16:20
Type: Poster Session: Poster Session
Track: Process Technology - Pre/Post-Treatment (Strip Cleaning, Skin Passing, Passivation, Oiling)
In order to meet the requirements of users for high corrosion resistance and spraying coating, the environment-friendly surface treatment technology for the 55% Al-Zn alloy coated steel sheet was studied, and the technology of passive film with high corrosion resistance and coating ability was formed. The morphology, composition and properties of passive film were tested and studied by infrared sp ... More
Presented by Xueqiang DONG on 21/6/2021 at 16:26
Type: Poster (*) Session: Poster Session
Track: New Technological Concepts
When magnesium is added to the hot-dip galvanized steel sheet, corrosion resistance is greatly improved, but causes black spots. Rolled steel sheet has the effect of concealing black spot. And Rolling the pattern during the hot dip plating line can minimize the damage of many plating layers and can process various patterns.
Presented by EUNSU HAN on 21/6/2021 at 15:46
Type: Poster (*) Session: Poster Session
Track: Household Application  - Forming, Joining, Painting and Final Properties 
When using low carbon steel to produce pre-painted steel, there is a risk of a defect called fluting. Fluting is a series of sharp parallel kinks or creases occurring in the arc when sheet steel is formed cylindrically. One of the options for eliminating this defect is the use of interstitial free steel not subject to aging in the process of applying a pre-painted steel, but this leads to an incre ... More
Presented by Ruslan ADIGAMOV on 21/6/2021 at 16:30
Type: Poster Session: Poster Session
Track: In-Line Measurements and Quality Control
The Zinc Alloy Coated Steel Sheets are mainly used for the plates of Automotive. Especially, the interstitial free steel is used to the outer panel and it is manufactured by press forming in the process of automotive manufacturing. The materials are needed of high formability because the press formed parts have some complicated shape, therefore high elongation of mechanical properties are importan ... More
Presented by Yuki TAKEDA on 21/6/2021 at 15:32
Type: Poster (*) Session: Poster Session
Track: New Technological Concepts
Through-Process Quality Control is a quality system intended to cover the entire production line, from the liquid phase to the finishing and packaging lines of the final end product. The term “Through-Process” has been coined to specifically emphasize this idea. TPQC is a quality management system for steel production, which helps to continuously monitor and to manage quality across all produc ... More
Presented by Wolfgang OBERAIGNER on 21/6/2021 at 15:56
Type: Poster (*) Session: Poster Session
Track: Process Technology - Pre/Post-Treatment (Strip Cleaning, Skin Passing, Passivation, Oiling)
Third-generation advanced high-strength steels (AHSS) are a major opportunity for steel industry as they push the limits of both tensile strength and elongation to an outstanding level. This evolution is benefiting to everyone and brings major advantages: increased safety level, lower weight, more complex geometry and reduced energy consumption. Of course to be able to produce this new product ra ... More
Presented by Thomas VALLEE on 21/6/2021 at 16:02
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