Effect of Nb on Austenite Grain Growth in 10Cr-3Co-2W Martensitic Heat-Resistant Steel

被引：0

作者：

Park, Bong Cheon ^{[1
,4
]}

Kim, Sung-Dae ^{[2
]}

Park, Ihho ^{[1
]}

Shin, Jong-Ho ^{[3
]}

Jang, Jae Hoon ^{[1
]}

Kang, Namhyun ^{[4
]}

机构：

[1] Korea Inst Mat Sci, Dept Mat Anal, Chang Won 51508, South Korea

[2] Pukyong Natl Univ, Dept Mat Sci & Engn, Pusan 48513, South Korea

[3] Doosan Enerbil, Corp Res & Dev Inst, Chang Won 51711, South Korea

[4] Pusan Natl Univ, Dept Mat Sci & Engn, Pusan 46241, South Korea

来源：

METALS AND MATERIALS INTERNATIONAL | 2024年 / 30卷 / 12期

关键词：

Austenite; Grain growth; Heat resistant steel; Modeling; PREDICTION; SIZE; TI; DRAG; MICROSTRUCTURE; KINETICS; BEHAVIOR; MODEL; POWER;

D O I：

10.1007/s12540-024-01721-w

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of Nb on austenite grain growth kinetics was investigated in 10Cr-3Co-2W martensitic heat-resistant steel under various tempering conditions (temperature and time). The results demonstrate that Nb effectively refines the austenite grain size; this result is attributed to the combined effect of Nb atom solute drag effect and pinning effect of NbC precipitates. Based on the measured values, an empirical model was developed to predict the grain growth behavior of this alloy system. In addition, the key conditions and parameters for application to the microstructure evolution model of MatCalc software were derived. Results will enable the prediction of grain size at different Nb contents and temperature parameters, and provide useful information for designing heat treatment processes and alloys.

引用

页码：3311 / 3319

页数：9

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