Solute segregation on ¦²3 and random grain boundaries in type 316L stainless steel

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• 作者：Masanari Tomozawa ; ^{tomozawa@criepi.denken.or.jp} ; Yuichi Miyahara ; Kenji Kako
• 关键词：Atom probe ; Grain boundary segregation ; Stainless steel ; Type 316L ; ¦²3 boundary
• 刊名：Materials Science and Engineering: A
• 出版年：2013
• 出版时间：20 August, 2013
• 年：2013
• 卷：578
• 期：Complete
• 页码：167-173
• 全文大小：7170 K

文摘

Solute segregation and impurity segregation on random and ¦²3 grain boundaries in a type 316L stainless steel were investigated by means of atom probe tomography (APT). Segregation of Mo, P, B, and C was observed on random grain boundaries, irrespective of grain boundary misorientation. Two-dimensional concentration maps along the grain boundary plane revealed that the concentrations of all segregated elements were not homogeneous and no co-segregation was observed. In contrast, no segregation was observed on ¦²3 grain boundaries.