High temperature low cycle fatigue and thermo-mechanical fatigue of a 6061Al reinforced with SiCW

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	High temperature low cycle fatigue and thermo-mechanical fatigue of a 6061Al reinforced with SiCW
	L. H. Qian; Z. G. Wang; H. Toda; T. Kobayashi
	2000
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	291 期号:1-2 页码:235-245
摘要	The high temperature isothermal low cycle fatigue (IF) and thermo-mechanical fatigue (TMF) of a 6061Al alloy reinforced with 28 vol.% silicon carbide whiskers were studied. IF experiments were conducted at a temperature of 300 degrees C, and two types of TMF tests, i.e. in-phase (IP) and out-of-phase (OP), were performed with temperature cycling between 150 and 300 degrees C. All experiments were carried out under mechanical strain range control. Experimental results of mechanical behavior and mean stresses for TMF and IF loadings are provided. It can be seen that both IP and OP-TMF show continuous cyclic softening until failure, while IF loading initially shows several cycles of cyclic hardening followed by cyclic softening until final fracture. A comparison of TMF and IF lives has been made and various damage mechanisms operative under different strain ranges and loading conditions have been explained. SEM micrographs show that damage processes under both IF and TMF conditions consist of initiation, growth and coalescence of voids in the matrix around whiskers. Due to the complexity of the relationship between IF and TMF damage: IF data cannot be used to evaluate TMF life. (C) 2000 Elsevier Science S.A. All rights reserved.
部门归属	acad sinica, inst met res, state key lab fatigue & fracture mat, shenyang 110015, peoples r china. toyohashi univ technol, dept prod syst engn, toyohashi, aichi 4418580, japan.;qian, lh (reprint author), acad sinica, inst met res, state key lab fatigue & fracture mat, shenyang 110015, peoples r china
关键词	High Temperature Fatigue Thermo-mechanical Fatigue Al Alloy Composites Metal-matrix Composite Thermomechanical Fatigue Elevated-temperature Aluminum Composites Creep-behavior Alloy Whisker Microstructure Deformation Nucleation
URL	查看原文
WOS记录号	WOS:000089249100028
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37151
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. H. Qian,Z. G. Wang,H. Toda,et al. High temperature low cycle fatigue and thermo-mechanical fatigue of a 6061Al reinforced with SiCW[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2000,291(1-2):235-245.
APA	L. H. Qian,Z. G. Wang,H. Toda,&T. Kobayashi.(2000).High temperature low cycle fatigue and thermo-mechanical fatigue of a 6061Al reinforced with SiCW.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,291(1-2),235-245.
MLA	L. H. Qian,et al."High temperature low cycle fatigue and thermo-mechanical fatigue of a 6061Al reinforced with SiCW".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 291.1-2(2000):235-245.