The EBSD technique is used to study the structural and textural states in an austenitic corrosion-resistant steel of type Kh18N9 after long-term service in a tube at high temperatures. It is shown that the grains of the α-phase nucleate on coherent twin boundaries (Σ3 of the CSL model) between austenite grains, which determines their unique crystallographic orientation.

中文翻译：

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奥氏体耐腐蚀钢中g相分解的晶体学特征

EBSD 技术用于研究 Kh18N9 型奥氏体耐腐蚀钢在高温管道中长期使用后的结构和织构状态。结果表明，α 相的晶粒在奥氏体晶粒之间的相干孪晶边界（CSL 模型的 Σ3）上成核，这决定了它们独特的晶体取向。