文献类型：期刊文献

英文题名：Improving corrosion resistance and passive film stability associated with martensite in austenitic stainless steel rebar by tailoring martensitic transformation

作者：Xi, Xiaohui[1,2];Liu, Zhikun[1];Wang, Jinliang[1,2];Luo, Wei[1];Lin, Jiali[1];Xu, Ning[3];Tian, Yuwan[1];Sun, Xiaoyun[4];Wang, Dongmei[1]

机构：[1]Guangdong Ocean Univ, Sch Mech Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Engn Technol Res Ctr Ocean Equipment & M, Zhanjiang 524088, Peoples R China;[3]East China Jiaotong Univ, Sch Mat Sci & Engn, Nanchang 330013, Peoples R China;[4]Anhui Polytech Univ, Sch Mat Sci & Engn, Wuhu 241000, Peoples R China

年份：2026

卷号：26

期号：4

外文期刊名：ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001773453100001)、、Scopus(收录号：2-s2.0-105039950825)、WOS

基金：This work is supported by the National Natural Science Foundation of China (Grant No: 52401141), Guangdong Basic and Applied Basic Research Foundation (Grant No: 2024A1515010726), the National Natural Science Foundation of China (Grant No: 52401133) and the Innovation Team Project for Ordinary Universities in Guangdong Province (Grant No: 2024KCXTD041). We would like to thank the Analysis and Testing Center of Guangdong Ocean University for providing support with the transmission electron microscopy.

语种：英文

外文关键词：Austenitic stainless steel; Martensite; Corrosion resistance; Passive films; Grain boundary; Dislocation

外文摘要：In this work, the temperature-induced martensite and deformation-induced martensite were introduced into austenitic stainless steel rebar by pre-strain plus cryogenic treatment and deformation respectively, and the corresponding corrosion behavior was comparatively investigated in a saturated Ca(OH)(2) solution containing 3.5 wt% NaCl. The results showed that a higher corrosion resistance was achieved in the steel with temperature-induced martensite. This was predominantly attributed to the lower density of geometric necessary dislocation (GND) and higher proportion of special grain boundaries (SGBs) with low Sigma-value in the steel with temperature-induced martensite. On the one hand, the high density of GND weakened the compactness and stability of the passivation film by increasing the oxide vacancies and decreasing the amount of iron/chromium oxides in the passivation film. On the other hand, the high proportion of SGBs with low Sigma-value can suppress the initial stage of corrosion through inhibiting the formation of chromium carbides and disrupting the connectivity of the random boundary network. As a result, the combined effect of the two factors contributed to a higher corrosion resistance in the steels with temperature-induced martensite than that with deformation-induced martensite.