Effects of microcrack-damage on fracture behavior of TiAl alloy part I displacement-controlled tensile test
Cao, R.1,2; Zhu, H.2; Chen, J. H.1,2; Zhang, J.3; Ya, H. J.2
2008-02-15
发表期刊MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
卷号474期号:1-2页码:1-14
摘要Specimens of a directionally solidified cast of a fully lamellar TiAl alloy were tensile tested using displacement-controlled procedure. Numbers of microcracks were measured for specimens after they were subjected to various preload-unload processes. Combined with detailed fracture surface observations, the following effects of microcrack-damage on fracture behavior of TiAl alloy are proposed-(1) Volumetric effect: the apparent plastic elongation incorporates both plastic strain and the elongation caused by microcracks. (2) Volumetric effect: microcracks produced in entire specimen volume decrease the apparent elastic modulus and produce a stress-softening sector of the load-displacement curve just before final fracture. (3) Facial effect: microcracks extended on a weakest cross-section decrease and determine the fracture load. (C) 2007 Elsevier B.V. All rights reserved.
关键词TiAl alloy damage fracture behavior microcrack
DOI10.1016/j.msea.2007.06.055
收录类别SCI
语种英语
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000253030500001
出版者ELSEVIER SCIENCE SA
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/35543
专题材料科学与工程学院
通讯作者Chen, J. H.
作者单位1.Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Metal Mat, Lanzhou 730050, Peoples R China
2.Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Metal Mat, Lanzhou 730050, Peoples R China
3.Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
第一作者单位兰州理工大学
通讯作者单位兰州理工大学
第一作者的第一单位兰州理工大学
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Cao, R.,Zhu, H.,Chen, J. H.,et al. Effects of microcrack-damage on fracture behavior of TiAl alloy part I displacement-controlled tensile test[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2008,474(1-2):1-14.
APA Cao, R.,Zhu, H.,Chen, J. H.,Zhang, J.,&Ya, H. J..(2008).Effects of microcrack-damage on fracture behavior of TiAl alloy part I displacement-controlled tensile test.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,474(1-2),1-14.
MLA Cao, R.,et al."Effects of microcrack-damage on fracture behavior of TiAl alloy part I displacement-controlled tensile test".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 474.1-2(2008):1-14.
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