Browsing Engineering (Faculty of) by Supervisor "Biro, Elliot"
Now showing items 1-10 of 10
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Characterization and microstructure-based modeling of spot weld failure in hot stamped steel
(University of Waterloo, 2022-02-08)The performance of automotive safety components in a crash event depends on the mechanical properties of the sheet metal as well as the failure behavior of the spot welds that are used for sheet metal assembly. Unlike many ... -
Effect of surface condition on resistance spot welding of advanced high strength steel
(University of Waterloo, 2019-09-25)Advanced high strength automotive sheet steel (AHSS) is used in body-in-white design to reduce vehicle weight while maintaining high crashworthiness. Surface coatings applied to AHSS to protect it from oxidation and ... -
Improving the multiscale morphological and mechanical properties of laser welded Al-Si coated 22MnB5 press-hardened steels
(University of Waterloo, 2023-03-27)In the automotive industry, the demand for reduced vehicle weight, improved safety and enhanced crashworthiness qualities continues to rise which introduces the need for parts and components with tailored properties. This ... -
The Influence of Electrode Force on Liquid Metal Embrittlement of Third Generation Advanced High Strength Steels during Resistance Spot Welding
(University of Waterloo, 2023-05-08)Zinc coatings are generally applied on the surface of advanced high-strength steels (AHSS) for corrosion resistance. However, the elevated temperature during resistance spot welding process melts zinc coating and the intact ... -
Investigation of Liquid Metal Embrittlement in Advanced High Strength Steels
(University of Waterloo, 2020-04-17)Third-generation advanced high strength steels (AHSS) are typically given a zinc coating that provides excellent resistance to corrosion. During the resistance spot welding (RSW) process, the melted zinc coating enables ... -
Investigation of Liquid-Metal-Embrittlement Crack-path: Role of Grain Boundaries and Responsible Mechanism
(University of Waterloo, 2020-07-24)Liquid metal embrittlement (LME) has been reported in many structural materials, including steel, aluminum, nickel during hot working processes e.g. welding, brazing, heattreatment, leading to abrupt failure. In many of ... -
Liquid metal embrittlement cracking in dissimilar resistance spot welding of 3rd Gen – Advanced high strength steel: mitigation methods and associated mechanisms
(University of Waterloo, 2022-12-19)In response to the automotive industries demands for safer, lighter, and more environmentally friendly vehicles, the third generation of advanced high-strength steels (3G-AHSS) has been developed to have both high strength ... -
Liquid Metal Embrittlement in Resistance Spot Welding: The Thermomechanical Origin and Embrittler Transport Mechanism
(University of Waterloo, 2021-08-05)To increase fuel economy, demand for lighter vehicles by way of thinner parts has risen in recent years. As parts become thinner the vehicle safety cannot be comprised, leading to the development of advanced high strength ... -
Microstructural Development and Weldability Optimization in the Resistance Spot Welding of Quenched and Partitioned Steels
(University of Waterloo, 2021-04-16)Advanced high-strength steels (AHSS) have been widely used in the automotive industry to meet the demand for reduced fuel consumption and environmental emissions. Quenching and Partitioning (Q&P) is a heat-treatment method ... -
A Statistical Approach to Quantifying Impact of Multiple Pulse Resistance Spot Welding Schedules on Liquid Metal Embrittlement Cracking
(University of Waterloo, 2019-04-26)Advanced high strength steels (AHSS) are advantageous for automotive applications due to their excellent strength and ductility. However, when coated with zinc for corrosion protection, these steels are susceptible to ...