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Zinc Effects of Mechanical Behavior of AHSS Welds

 

  1. Advanced high strength steels (AHSS) are being increasingly used in automotive structures to reduce vehicle weight and increase fuel efficiency.
  2. AHSS are zinc coated to protect the steel from corrosion. However the steel-zinc system can lead to liquid metal embrittlement (LME) during resistance spot welding.
  3. Cracked welds are a concern for the strength and quality of AHSS joints. Further understanding and mitigation of LME cracking is needed before AHSS can be widely implemented.

 

Industry Sponsor: Arcelor Mittal

Faculty: Norman Zhou

Graduate Student: Chris DiGiovanni

Industry Contact: Andrew Macwan