Dilatometry Analysis of Dissolution of Cr-Rich Carbides in Martensitic Stainless Steels
Dilatometry Analysis of Dissolution of Cr-Rich Carbides in Martensitic Stainless Steels
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DOI：
10.1007/s11661-017-4377-2
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发表时间：
2017-12-01
影响因子：
2.8
通讯作者：
Mola, Javad
中科院分区：
文献类型：
--
作者：
Huang, Qiuliang;Volkova, Olena;Mola, Javad
用膨胀法和相关的电子通道对比法研究了13% Cr不锈钢马氏体成分中富Cr碳化物的溶解。马氏体向奥氏体转变后碳化物的溶解与净体积膨胀有关，这反过来又增加了连续加热过程中基于膨胀法的表观热膨胀系数（CTEa）。讨论了碳化物含量和尺寸对碳化物溶解过程中CTEa变化的影响。
The dissolution of Cr-rich carbides formed in the martensitic constituent of a 13 pct Cr stainless steel was studied by dilatometry and correlative electron channeling contrast examinations. The dissolution of carbides subsequent to the martensite reversion to austenite was associated with a net volume expansion which in turn increased the dilatometry-based apparent coefficient of thermal expansion (CTEa) during continuous heating. The effects of carbides fraction and size on the CTEa variations during carbides dissolution are discussed.