期刊
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 528, 期 4-5, 页码 1987-1993出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2010.10.061
关键词
Strain-induced phase transformation; In situ neutron diffraction; Line-profile analysis; Stacking faults
类别
资金
- National Science Foundation at The University of Tennessee [DMR-0231320, DGE-9987548, EEC-9527527, EEC-0203415, DMR-0909037, CMMI-0900271]
- Tennessee Advanced Materials Laboratory
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [0900271] Funding Source: National Science Foundation
A complimentary set of experiments, in situ neutron diffraction and ex situ synchrotron X-ray diffraction, were used to study the phase-transformation and subgrain-deformation characteristics of a cobalt-based superalloy. The neutron diffraction indicated a strain-induced phase transformation in the cobalt-based superalloy under uniaxial tension and compression. The synchrotron X-ray diffraction revealed stacking-fault accumulation and twinning under the same loading conditions. The extent of transformation was found to be greater under tension than under compression. Tensile plastic strains below 2% were accommodated by the stacking-fault creation, while those greater than 2% were accommodated by the phase transformation. Twinning was found to be more active under compressive loading than under tensile loading. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据