JI Jingwen WEI Quanjin GENG Dianqi WU Yuqin Northeast University of Technology
,
Shenyang
,
China Professor
,
Dept.of Physics
,
Northeast University of Technology
,
Shenyang 110006
,
China
金属学报(英文版)
The grain boundary internal friction(GBIF)in Fe-P and Fe-P-La alloys containing trace Cu has been studied.It is found that an addition of 0.584—0.722 wt-% La obviously reduces the IF,shifts grain boundary peaks towards higher temperatures,and produces a small addi- tional peak at even higher temperature.The mechanism of GBIF is explained as the movement of defects of atomic size,namely point defects,at gram boundaries and/or their clusters un- der stress.
关键词:
internal friction
,
null
,
null
,
null
,
null
