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	Low Cycle Fatigue Behaviors of TI-6AL-4V Alloy Controlled by Strain and Stress
	Wang, Ruifeng2; Li, Youtang1,2; An, Huping3
	2013
关键词	Ti-6Al-4V alloy Low cycle fatigue Strain control Friction stress Back stress Cyclic creep
卷号	525-526
DOI	10.4028/www.scientific.net/KEM.525-526.441
页码	441-+
英文摘要	The low cycle fatigue behaviors of TI-6AL-4V alloy controlled by strain were investigated by experiment. The fatigue tests were performed at room temperature, and cyclic strain and stress ratio are 0.1 with triangle load wave. The results show that TI-6AL-4V alloy is soften rapidly under the cyclic tensile stresses and it is harden rapidly under the cyclic compressive stresses during the initial-stage of strain controlled fatigue, and the rates of cyclic soften and cyclic harden are decreased with the fatigue progress. The soften rate is related to the cyclic strain but little to the cyclic stress during the overall fatigue progress. The change of cyclic stress is related to the macro friction stresses. The results of experiment show that obvious cyclic creep occurs under the stress controlled low cycle fatigue conditions, and the magnitude of cyclic creep strain is related to the maximum cyclic stress. The softening of tensile friction stresses is the main factor of cyclic creep.
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS记录号	WOS:000315543300111
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/37053]
专题	学报编辑部
作者单位	1.Lanzhou Jiao Tong Univ, Lanzhou, Peoples R China; 2.Lanzhou Univ Technol, Minist Educ, Key Lab Digital Mfg Technol & Applicat, Lanzhou 730050, Peoples R China; 3.Lanzhou City Univ, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ruifeng,Li, Youtang,An, Huping. Low Cycle Fatigue Behaviors of TI-6AL-4V Alloy Controlled by Strain and Stress[C]. 见:.

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