Low-cycle fatigue behavior of a particulate SiC/2024Al composite at ambient and elevated temperature

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	Low-cycle fatigue behavior of a particulate SiC/2024Al composite at ambient and elevated temperature
	N. L. Han; Z. G. Wang; W. L. Wang; G. D. Zhang; C. X. Shi
	1999
发表期刊	Composites Science and Technology
ISSN	0266-3538
卷号	59 期号:1 页码:147-155
摘要	An investigation has been carried out to study the low-cycle fatigue lives and cyclic stress response characteristics of a particulate SiC-reinforced 2024Al and its unreinforced matrix alloy at 22 and 190 degrees C. The specimens were cyclically deformed with fully-reversed loading under plastic-strain amplitudes. The test results showed that the cyclic stress response characteristics of the composite and the 2024Al alloy were similar to each other in spite of changing the test temperature. The composite and its unreinforced counterpart generally exhibited cyclic hardening at 22 degrees C and cyclic softening at 190 degrees C. Increase in low-cycle fatigue resistance for both the composite and the aluminium alloy was observed as the test temperature rose from 22 to 190 degrees C. For a given temperature the low-cycle fatigue endurance of the composite was lower than that of the unreinforced matrix alloy in the high and middle strain regions, however, at low strains the difference in fatigue endurance between the composite and the aluminum alloy decreased. The mechanism of strain in the composite, i.e. the strain in the composite was nearly completely sustained in the soft matrix, and the strain concentration adjacent to the reinforcement were two important factors that led to the shorter strain-fatigue life for the composite. (C) 1999 Elsevier Science Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, state key lab fatigue & fracture mat, inst met res, shenyang 110015, peoples r china.;han, nl (reprint author), univ calif los angeles, dept mat sci & engn, los angeles, ca 90095 usa
关键词	Metal-matrix Composite Fatigue Fracture High-temperature Properties Plastic Deformation Aluminum-matrix Composite Fracture-behavior Reinforcement Deformation Cast
URL	查看原文
WOS记录号	WOS:000078692700015
引用统计	被引频次：25[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/321006/37362
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	N. L. Han,Z. G. Wang,W. L. Wang,et al. Low-cycle fatigue behavior of a particulate SiC/2024Al composite at ambient and elevated temperature[J]. Composites Science and Technology,1999,59(1):147-155.
APA	N. L. Han,Z. G. Wang,W. L. Wang,G. D. Zhang,&C. X. Shi.(1999).Low-cycle fatigue behavior of a particulate SiC/2024Al composite at ambient and elevated temperature.Composites Science and Technology,59(1),147-155.
MLA	N. L. Han,et al."Low-cycle fatigue behavior of a particulate SiC/2024Al composite at ambient and elevated temperature".Composites Science and Technology 59.1(1999):147-155.