INTERNAL FRICTION OF GRAIN BOUNDARIES IN Fe-P AND Fe-P-La ALLOYS CONTAINING TRACE Cu

作     者：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 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：1990年第3卷第4期

页      面：243-248页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：internal friction grain boundary Fe-P alloy La Cu 

摘      要：The grain boundary internal friction(GBIF)in Fe-P and Fe-P-La alloys containing trace Cu has been *** 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 *** 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.