AFM quantitative analysis and determination of shear angle of {259}_f martensitic surface relief

作     者：LIN Xiaoping, GU Nanju, ZHANG Yong, MENG Zhaowei and MA Xiaoli(Department of Materials Science and Technology, Hebei University of Technology, Tianjin 300130, China) 

作者机构：Department of Materials Science and Technology Hebei University of Technology Tianjin 300130 China 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2002年第10期

页      面：48-53页

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 0703[理学-化学] 

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 59771040) 

主　　题：atomic force microscope (AFM) surface relief invariant plane strain (IPS) relief angle shear angle. 

摘      要：An attentive observation and quantitative analysis of {259}f martensitic surface relief in an Fe-23Ni-0. 55C alloy are made by means of an atomic force microscope (AFM), and different martensitic variants shear angles are determined in this paper. The experiments show that {259}f martensitic surface relief exhibits regular shape in many cases, which is in agreement with the prediction of invariant plane strain (IPS). Generally, {259}f martensitic surface relief appears to be N-shaped, but it is tent-shaped in the case of zigzag-shaped martensite. The compressed deformation of parent phase diminishes the surface relief in size but with little change of its relief angle. {259}f martensitic surface relief, large or small, has approximately the same relief angles, exhibiting a good self-similar fractal. The determined values of different {259}f martensitic variants shear angles are in fine agreement with the prediction of Wechsler-Liberman-Read (W-L-R) theory, with only a slight difference of less th