The liquid metal embrittlement sensitivity of a low nickel 316 L austenitic steel has been studied with eutectic gallium indium alloy. The embrittlement case is firmly established with this steel and studied by X-Ray fractography and EBSD. Brittle to ductile recoveries were observed via a dedicated parametric study (varying cross-head speed and temperature). The return to ductility with temperature is strongly correlated with a significant reduction in plastically induced α’ phase change suggesting it is a requirement for LME. This implies a strategy focused on limiting deformation induced martensite to design LME resistant austenitic steels at low temperature.

用共晶镓铟合金研究了低镍 316 L 奥氏体钢的液态金属脆化敏感性。这种钢的脆化情况已牢固确立，并通过 X 射线断层分析和 EBSD 进行了研究。通过专门的参数研究（不同的十字头速度和温度）观察到脆性到韧性的恢复。随着温度恢复延展性与塑性诱导的 α' 相变的显着减少密切相关，表明这是 LME 的要求。这意味着一种策略侧重于限制变形诱发马氏体，以设计低温下耐 LME 的奥氏体钢。