【作者】 宋振纶； 岸本哲；

【Author】 Song Zhen-lun Kishimoto Satoshi (1.Ningbo Institute of materials Technology and Engineering,Chinese Academy of Sciences.2.National Institutes for Materials Science(NIMS),Tsukuba,Ibaraki 305-0047,Japan.)

【机构】 中国科学院宁波材料技术与工程研究所； National Institutes for Materials Science(NIMS),1-2-1,Sengen,Tsukuba,Ibaraki 305-0047,Japan；

【摘要】 本文研究了 Cu-Al-Be 合金等温逆马氏体相变过程中内耗的变化规律。研究发现,在相变温区,样品内耗值随等温时间的延长而有规律地下降。我们认为,这一现象是由于晶体内部缺陷运动引起的。在等温过程中,点缺陷向界面偏聚,逐渐限制界面移动,引起内耗的下降。更多还原

【Abstract】 In this report,the internal friction(IF)of a Cu-A1-Be alloy during reverse martensitic transformation(MT)was investigated under isothermal condition.Experiments show that the IF decreases regularly with the aging time in the temperature range of phase transformation.It is thought that the defect movement causes this phenomenon.The defects diffuse to the interfaces between martensite and austenite and pin there gradually,thus leading to the IF decrease.更多还原