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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Advances in Surface Engineering V
Presentation Title N-32: Evaluation of LME Susceptibility of Al-Zn-Si Coated TRIP Steel
Author(s) Daehoon Jeong, Seok-Hyun Hong, Suk-Kyu Lee, Sung-Joon Kim
On-Site Speaker (Planned) Daehoon Jeong
Abstract Scope Although Zn-coated advanced high strength steels (AHSS) are widely used in the automotive industry, Zn-assisted liquid metal embrittlement (LME) is one of the critical problems to overcome. In this respect, the development of Al-Zn-Si ternary coating system is drawing attention to replace Zn coating. In this study, Al-Zn-Si coated TRIP steel has been selected, and the susceptibility to LME is assessed with hot tensile tests using the Gleeble 3500 which can closely simulate the resistance spot welding (RSW) process. The microstructural changes of the coating layer during the hot tensile testing is analyzed with the scanning electron microscopy (SEM) and its effect on LME is discussed. In addition, a possible mechanism of base metal exposure, liquid metal penetration, and fracture in the coated steel is explained as well.
Proceedings Inclusion? Planned:
Keywords Surface Modification and Coatings, Iron and Steel,

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Dry Electrolyte Polishing of As-printed Additively Manufactured Stainless Steel
Effect of Direct and Pulsed Current on Electrodeposited Zn-Fe Alloy Coatings
Effect of Intercritical Annealing Temperature and Sb Micro-addition on the Selective Oxidation of a Fe-6wt.%Mn Alloy
Effective Utilization of Metallurgical Characterization Methods for Oxidation Resistance Spray Coatings
Effects of Aging and Surface Mechanical Attrition Treatment on Corrosion Behavior of Aluminum 7075 Alloys
Electrochemical Properties of Electrodeposited Porous AuCu Dendrite for the Oxygen Reduction Reaction in Alkaline Solutions
Fatigue Behavior of Laser Polished Laser Powder Bed Fused IN718: Identify a Suitable Heat Treatments and Laser Polishing Combination
Hot Stamping of Aluminum 6061 Alloys with Volatile Media Injected through Additive Manufactured Die
Investigation of Surface Properties of Cemented Steel E16NCD13 after Vibratory Peening
Laser Induced Micro/Nano Structured Stainless Steel Surfaces for Biological and Food Storage Applications
Mechanical Behavior of AISI 8620 Steel`s Surface Modified through TIG Arcing
Microstructural Evolution and Performance of Si-based Coatings Formed on Refractory Multi-principal Element Alloys
N-10: Use of Novel Degradable Surface Coatings for Enhanced Biofilm Growth
N-32: Evaluation of LME Susceptibility of Al-Zn-Si Coated TRIP Steel
N-36: Production of Gold Nano Films by Pulse Electrodeposition
N-7: Effect of Ultrasonic Impact Peening on Austenitic Stainless Steel Welds for Nuclear Canister Applications
N-8: Microstructural Changes of Electron Beam Treated AISI 316L with the Combination of Computation of Thermal and Mechanical Fields
N-9: Novel Fretting-Corrosion Mechanisms of Friction Stir Processed Steel Manufactured by High Deposition Rate Additive Manufacturing Process
Nitriding-Assisted Surface Enhancement of Multi-Principal Element Alloys Containing Refractory Metals
On Characterization of Microstructure and Surface Attributes in Drilling Processes at High Spatial Resolution
Open-air Plasma Surface Processing of Al Alloy 7075 Surface to Form Oxide-based Corrosion Barrier Layer
Oxidation of Ferrous Alloys and Coatings Under Isothermal, Impulse Heating, and Diesel Engine Operation
Peridynamic Simulation of Particles Impact and Bonding in Cold Spray with Tunable Adhesion
Single Step Sputtered Chromium Nitride Nano-clusters Coating for Enhanced Mechanical, Wetting and Corrosion Protection Properties
Synthesis of Corrosion Resistant Hexagonal Boron Nitride Coatings on Iron Substrates by Pulsed Laser Deposition
Understanding the Tribo-Corrosion Mechanisms of Laser Processed Steel Deposited by High Deposition Rate Cold Spray Additive Manufacturing Process

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