中国物理B ›› 1998, Vol. 7 ›› Issue (10): 784-788.doi: 10.1088/1004-423X/7/10/010

• • 上一篇    

POSITRON ANNIHILATION STUDY OF THERMOELASTIC MARTENSITE STABILIZATION IN A THERMALLY CYCLED CuZnAl ALLOY--A DISCUSSION OF ORIGIN OF THERMOELASTIC MARTENSITE STABILIZATION

祁金林1, 汤学峰1, 王景成2, 尤富强2, 邵自昌2   

  1. (1)Department of Physics, Tongji University; (2)Research Center, Shanghai Iron & Steel Research Institute
  • 收稿日期:1997-11-24 修回日期:1998-04-13 出版日期:1998-10-20 发布日期:1998-10-20
  • 基金资助:
    Project supported by the Shanghai State Key Laboratory of Metal-Functional Materials, China.

POSITRON ANNIHILATION STUDY OF THERMOELASTIC MARTENSITE STABILIZATION IN A THERMALLY CYCLED CuZnAl ALLOY--A DISCUSSION OF ORIGIN OF THERMOELASTIC MARTENSITE STABILIZATION

Wang Jing-cheng (王景成)a, You Fu-qiang (尤富强)a, Shao Zi-chang (邵自昌)a, Qi Jin-lin (祁金林)b, Tang Xue-feng (汤学峰)b   

  1. a Research Center, Shanghai Iron & Steel Research Institute, Shanghai 200940, China; b Department of Physics, Tongji University, Shanghai 200092, China
  • Received:1997-11-24 Revised:1998-04-13 Online:1998-10-20 Published:1998-10-20
  • Supported by:
    Project supported by the Shanghai State Key Laboratory of Metal-Functional Materials, China.

摘要: The thermally cycled samples of Cu-23at%Zn-10at%Al have been studied by means of positron annihilation. It is shown that vacancies and their movement seem to be the leading factors resulting in thermoelastic martensite stabilization based on the fact that stabilization was no longer present and the great decrease of positron parameters after the samples in martensite were thermally cycled.

Abstract: The thermally cycled samples of Cu-23at%Zn-10at%Al have been studied by means of positron annihilation. It is shown that vacancies and their movement seem to be the leading factors resulting in thermoelastic martensite stabilization based on the fact that stabilization was no longer present and the great decrease of positron parameters after the samples in martensite were thermally cycled.

中图分类号:  (Positron annihilation)

  • 78.70.Bj
61.82.Bg (Metals and alloys) 81.40.Jj (Elasticity and anelasticity, stress-strain relations) 81.30.Kf (Martensitic transformations) 62.20.D- (Elasticity)