In Situ Detection of Damage in the SiCf/Ti6242 Composite During the Thermomechanical Fatigue Test

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	In Situ Detection of Damage in the SiCf/Ti6242 Composite During the Thermomechanical Fatigue Test
	Kong Xu 1,2; Wang Yumin 1; Yang Qing 1; Bian Fang 1; Zhang Xu 1; Zhang Guoxing 1; Yang Lina 1; Wu Ying 1; Yang Rui 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2020-03-01
卷号	49 期号:3 页码:933-938
关键词	titanium matrix composites thermomechanical fatigue acoustic emission X-ray tomography
ISSN号	1002-185X
通讯作者	Wang Yumin(yuminwang@imr.ac.cn)
英文摘要	The damage of the SiCf/Ti6242 composite in the thermomechanical fatigue test was monitored by the acoustic emission (AE) technique and the high-resolution X-ray tomography. The thermomechanical fatigue test was conducted with a trapezoidal waveform to simulate the actual loading of the bladed ring. The applied stress range was 130 similar to 1300 MPa and the temperature range was 100 similar to 500 degrees C. The maximum stress was held for 2 min at 500 degrees C. The AE events emerged mainly in the loading stage and the dwell stage for the cycle where the AE signals of fiber fracture and matrix cracking were found. The matrix cracks of the unbroken specimen were detected by the high-resolution X-ray tomography. The necking of the tungsten filament in the broken fiber in the cracking region was also found. These results show that the damage mechanism of the specimen is dominated by a mixture of fiber fracture and matrix cracking.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000551278100026
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139997]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang Yumin
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Kong Xu,Wang Yumin,Yang Qing,et al. In Situ Detection of Damage in the SiCf/Ti6242 Composite During the Thermomechanical Fatigue Test[J]. RARE METAL MATERIALS AND ENGINEERING,2020,49(3):933-938.
APA	Kong Xu.,Wang Yumin.,Yang Qing.,Bian Fang.,Zhang Xu.,...&Yang Rui.(2020).In Situ Detection of Damage in the SiCf/Ti6242 Composite During the Thermomechanical Fatigue Test.RARE METAL MATERIALS AND ENGINEERING,49(3),933-938.
MLA	Kong Xu,et al."In Situ Detection of Damage in the SiCf/Ti6242 Composite During the Thermomechanical Fatigue Test".RARE METAL MATERIALS AND ENGINEERING 49.3(2020):933-938.