板条马氏体中变形引起的晶格取向错误

IF 1.3 Q3 ENGINEERING, MECHANICAL

PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING Pub Date : 2022-09-22 DOI:10.3311/ppme.21216

P. Szabó

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引用次数: 0

摘要

利用电子背散射衍射(EBSD)研究了塑性变形对板条马氏体晶格取向偏差的影响。当拉伸载荷达到9000 N、14000 N、19000 N和21000 N时，淬火后的棒状试样发生塑性变形。利用EBSD采集了籽粒平均取向图。结果表明，塑性变形时的平均取向偏差由0.887°增加到1.156°。结果表明:在板条马氏体塑性变形过程中，导致点阵取向错误的几何必要位错密度略有增加;

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Deformation Induced Lattice Misorientation in Lath Martensite

Effect of plastic deformation on the lattice misorientation in lath martensite was investigated by Electron Backscatter Diffraction (EBSD). As-quenched rod-like specimens were plastically deformed until 9000 N, 14000 N, 19000 N and 21000 N of tensile loading. Grain average misorientation maps were collected by EBSD. It was shown that the average misorientation during plastic deformation increased from 0.887 to 1.156 degrees. Results showed that the density of geometrically necessary dislocations, which caused the lattice misorientation, slightly increased during plastic deformation of lath martensite.

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来源期刊

PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING ENGINEERING, MECHANICAL-

CiteScore

2.80

自引率

7.70%

发文量

审稿时长

20 weeks

期刊介绍： Periodica Polytechnica is a publisher of the Budapest University of Technology and Economics. It publishes seven international journals (Architecture, Chemical Engineering, Civil Engineering, Electrical Engineering, Mechanical Engineering, Social and Management Sciences, Transportation Engineering). The journals have free electronic versions.