Drastically fewer, shorter cracks
An ultra-thin Ni layer between the Zn-Al-Mg coating and steel substrate remarkably suppresses liquid metal embrittlement cracks during resistance spot welding.
Fangcheng, Tian · Teng, Huaxiang · Shuo, Wang · Wei, Liang · Guangxin, Wu · Yunying, Xie
Materials Characterization 2026
Number and length of cracks remarkably reduced
γ-Ni₂Zn₁₁ precipitated in the Zn-rich region at the crack tip