PHOSPHORUS GRAIN BOUNDARY SEGREGATION IN A P-DOPED 2.25Cr1Mo STEEL
来源期刊：Acta Metallurgica Sinica2004年第5期
论文作者：S.H.Song D.D.Shen J.LIU L.Q.Wen Z.X.Yuan
Key words：segregation; grain boundary; low-alloy steel; phosphorus;
Abstract: Grain boundary segregation of phosphorus during tempering at 540℃ after quenching from 980℃ is examined for a P-doped 2.25CrlMo steel by means of Auger electron spectroscopy.The solute-boundary binding energy and the diffusion coefficient for phosphorus are determined by virtue of the measured segregation kinetics along with the equilibrium segregation theory.The obtained values of the above parameters are discussed with comparison to those found in the literature for low-alloy steels.
S.H.Song1，D.D.Shen1，J.LIU1，L.Q.Wen2，Z.X.Yuan1
(1.The Hubei Province Key Laboratory of Ceramics and Refractories, Wuhan University of Science and Technology, Wuhan 430081, China;
2.School of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016, China)
Abstract:Grain boundary segregation of phosphorus during tempering at 540℃ after quenching from 980℃ is examined for a P-doped 2.25CrlMo steel by means of Auger electron spectroscopy.The solute-boundary binding energy and the diffusion coefficient for phosphorus are determined by virtue of the measured segregation kinetics along with the equilibrium segregation theory.The obtained values of the above parameters are discussed with comparison to those found in the literature for low-alloy steels.
Key words:segregation; grain boundary; low-alloy steel; phosphorus;
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