On the origin of cementite diffraction peak broadening during tensile deformation at ambient temperatures

被引：12
|
作者：
Weisser, M. A. [1 ,2 ]
Van Petegem, S. [1 ]
Cervellino, A. [3 ]
Van Swygenhoven, H. [1 ,2 ]
机构：
[1] Paul Scherrer Inst, NUM ASQ, CH-5232 Villigen, Switzerland
[2] Ecole Polytech Fed Lausanne, IMX, CH-1012 Lausanne, Switzerland
[3] Paul Scherrer Inst, Dept Synchrotron Radiat & Nanotechnol, CH-5232 Villigen, Switzerland
来源：
INTERNATIONAL JOURNAL OF PLASTICITY | 2015年 / 66卷
关键词：
Dislocations; Microstructures; Strengthening mechanisms; Particle reinforced material; Mechanical testing; ELASTOPLASTIC DEFORMATION; NEUTRON-DIFFRACTION; PLASTIC-DEFORMATION; ELASTIC-ANISOTROPY; POWDER DIFFRACTION; ROOM-TEMPERATURE; PEARLITIC STEEL; CARBON-STEELS; FE3C; FRACTURE;
D O I：
10.1016/j.ijplas.2014.10.008
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
We report on the diffraction peak shape evolution from cementite particles in three steel microstructures, recorded during in-situ tensile deformation at room temperature. We demonstrate that in a bainitic tempered steel the observed peak broadening and asymmetry of cementite is a purely elastic effect, related to the heterogeneity of the microstructure. This result warns against the indiscriminate use of peak profile analysis to derive information on plastic deformation in cementite. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：138 / 144
页数：7
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