The Aging Behavior of Aluminum-Lithium Alloy 2A97

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	The Aging Behavior of Aluminum-Lithium Alloy 2A97
	Yuan Zhishan 1; Wu Xiuliang 2; Lu Zheng 2; Xie Youhua 2; Dai Shenglong 2; Liu Changsheng 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2008
卷号	37 期号:11 页码:1898-1902
关键词	ULTRA-HIGH-STRENGTH AG-MG ALLOY ZR ALLOY aging reversion 2A97 aluminum-lithium alloy DSC XRD
ISSN号	1002-185X
其他题名	The Aging Behavior of Aluminum-Lithium Alloy 2A97
英文摘要	The evolution of microstructures and properties of aged 2A97 alloy at 165 degrees C after quenching, and at 135 degrees C after quenching and 4% plastic deformation for various times were investigated. The results show that theta ''/theta' and delta' phases are the main strengthening phases of aged alloy at 165 degrees C for 18 h after quenching, which shows high tensile strength and ductility resulting from increasing amount of T(1) phase distributed heterogeneously in matrix. With increasing aging time at 165 degrees C, the number density of theta ''/theta', T(1), and delta' increase, and the length of T(1) decreases, while the length of theta ''/theta' increases. Stretch before aging fines the size of theta ''/theta' and T(1), and stimulates the precipitation and uniform distribution of them, so it yields higher strength for the alloy aged at 135 degrees C for 36 h after quenching and stretch, which is 441 MPa, 519 MPa, and 7.4% for sigma(0.2), sigma(b), and sigma(5), respectively, than the alloy aged at 165 degrees C after quenching.
语种	英语
CSCD记录号	CSCD:3474901
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/152435]
专题	金属研究所_中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.Beijing Institute Aeronaut Mat, Beijing 100095, Peoples R China
推荐引用方式 GB/T 7714	Yuan Zhishan,Wu Xiuliang,Lu Zheng,et al. The Aging Behavior of Aluminum-Lithium Alloy 2A97[J]. RARE METAL MATERIALS AND ENGINEERING,2008,37(11):1898-1902.
APA	Yuan Zhishan,Wu Xiuliang,Lu Zheng,Xie Youhua,Dai Shenglong,&Liu Changsheng.(2008).The Aging Behavior of Aluminum-Lithium Alloy 2A97.RARE METAL MATERIALS AND ENGINEERING,37(11),1898-1902.
MLA	Yuan Zhishan,et al."The Aging Behavior of Aluminum-Lithium Alloy 2A97".RARE METAL MATERIALS AND ENGINEERING 37.11(2008):1898-1902.