Grain boundary segregation of phosphorus and molybdenum in a Cr-Mo low alloy steel

被引：8
|
作者：
Song, SH
Yuan, ZX
Shen, DD
Liu, J
Weng, LQ
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Sch Mat Sci & Technol, Nanjing 210016, Peoples R China
[2] Brunel Univ, Dept Engn Mech, Uxbridge UB8 3PH, Middx, England
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2004年 / 20卷 / 01期
关键词：
segregation; grain boundaries; low alloy steels; phosphorus;
D O I：
10.1179/026708304225010307
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Grain boundary segregation of phosphorus and molybdenum during aging at 540degreesC after quenching from 980degreesC is examined for a P-doped 2-25Cr1Mo steel using Auger electron spectroscopy. The standard molar free energies of segregation and diffusion coefficients for these two elements are determined through the measured segregation kinetics along with the equilibrium segregation theory in multicomponent systems. The values obtained for these parameters are discussed with comparison to those found in the literature for low alloy steels.
引用
收藏
页码：117 / 120
页数：4
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