The H-coupon test, developed a few years ago to evaluate cracking behavior in spot-welded advanced high-strength steels (AHSS), has recently been applied to galvanized third generation AHSS. Two types of cracking have been observed in the tests of these steel grades – interfacial and zinc liquid metal embrittlement (LME).
This research is discussed in Application of H-coupon Testing for Assessing Cracking During Spot Welding of Third Generation Steels, written by Applications Engineer Rafael Giorjão and Senior Technology Leader Jerry Gould. You are invited to download this paper – for free – by submitting the form on this page.
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