Abstract Twinning-induced plasticity (TWIP) steels are increasingly receiving wide attention for automotive applications due to their outstanding combination of ductility and strength, which can largely be attributed to the strain hardening effect, formation of mechanical twins during straining, and the presence of manganese (Mn) as an alloying element. However, the premature cracking and sudden failure frequently experienced by the TWIP steels under the combined action of tensile stress and corrosion environment remain a challenge for many material scientists and experts up till now. Driven by this challenge, an overview of the stress corrosion cracking (SCC) susceptibility of high-Mn TWIP steels (under the action of both mechanical loading and corrosion reaction) is presented. The SCC susceptibility of the high-Mn TWIP steels is specifically sensitive to hydrogen embrittlement, which is a major factor influencing the SCC behavior, and is a function of the hydrogen content, lattice-defect density and strength level. Besides, the corrosion susceptibility to hydrogen embrittlement may be reduced by suppressing the martensite in the TWIP steels by carbon additions. This review further discusses in detail the precipitation strengthening mechanisms as well as the corrosion behavior of TWIP steel by mechanism.

中文翻译：

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TWIP钢的应力腐蚀开裂和析出强化机制：进展与展望

摘要 孪生诱导塑性 (TWIP) 钢因其延展性和强度的出色结合而在汽车应用中越来越受到广泛关注，这在很大程度上归因于应变硬化效应、应变过程中机械孪晶的形成以及锰的存在。 (Mn) 作为合金元素。然而，TWIP钢在拉应力和腐蚀环境的共同作用下经常出现的过早开裂和突然失效，至今仍是许多材料科学家和专家面临的挑战。在这一挑战的推动下，概述了高锰 TWIP 钢（在机械载荷和腐蚀反应的作用下）的应力腐蚀开裂 (SCC) 敏感性。高锰 TWIP 钢的 SCC 敏感性对氢脆特别敏感，这是影响 SCC 行为的主要因素，是氢含量、晶格缺陷密度和强度水平的函数。此外，通过添加碳来抑制 TWIP 钢中的马氏体，可以降低对氢脆的腐蚀敏感性。本综述通过机理进一步详细讨论了 TWIP 钢的沉淀强化机制和腐蚀行为。