物理化学学报 >> 1987, Vol. 3 >> Issue (05): 544-546.doi: 10.3866/PKU.WHXB19870519

研究简报 上一篇    下一篇

铁铬二元合金生成σ相的热化学研究

程述武; 范民; 林海; 朱苓   

  1. 北京钢铁学院化学系
  • 收稿日期:1986-02-17 修回日期:1986-07-20 发布日期:1987-10-15

THERMOCHEMICAL STUDY OF THE SIGMA-PHASE OF Fe-Cr BINARY ALLOYS

Cheng Shuwu; Fan Min; Lin Hai; Zu Lin   

  1. Department of Chemistry; Beijing University of Iron & Steel Technology
  • Received:1986-02-17 Revised:1986-07-20 Published:1987-10-15

Abstract: In this paper the properties of the sigma-phase of Fe-Cr alloy have been stu- died at 109 K and 718 K by calorimetry. At 1093 K the σ→a phase transformn enthalpies are different from reported values~[4] and at 718 K the a→σ phase trans- formation enthalpies reported by no person have been obtained. The X-ray diffrac- tion experiments have been used to determine that no σ phase exists yet at room temperature.