Effect of thermal cycles on the laser beam welded joint of AA2060 alloys

doi:10.1557/jmr.2018.229

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Effect of thermal cycles on the laser beam welded joint of AA2060 alloys
	Mao L 3; Jin HJ 2; Ye F 3; Wang FF 3; Zheng G 1; Wu SJ 3
刊名	JOURNAL OF MATERIALS RESEARCH
	2018-10-29
卷号	33 期号:20 页码:3439-3448
ISSN号	0884-2914
DOI	10.1557/jmr.2018.229
通讯作者	Wu, Sujun(wusj@buaa.edu.cn)
英文摘要	The effects of the thermal cyclic aging treatment on the microstructure and mechanical properties of 2060 Al-Li alloy laser beam welded joints were investigated. Aging treatments were conducted at different temperatures and for different cycles. Test results showed that the tensile strength of the weld joints increased and the elongation slightly decreased after the thermal cycling treatment. It was also found that the heat affected zone (HAZ) of the welds exhibited a significant increase in microhardness, whilst the microhardness variation of the nondendrite equiaxed zone (EQZ) can be neglected. The strengthening effect of the thermal cycling became more obvious as the temperature and cycles increased. The highest strength of around 513 MPa (96% of the base metal) was obtained at the temperature of 180 degrees C. Reprecipitation of strengthening phases such as T1 in the HAZ at 180 degrees C was observed by TEM, which can be considered as the main reason for the strengthening effect of the aging treatment.
分类号	Q3
WOS关键词	MECHANICAL-PROPERTIES ; HEAT-TREATMENT ; LI ; MICROSTRUCTURE ; WELDABILITY ; BEHAVIOR ; AG
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000452651700009
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/78967]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Principle Engineer State Nucl Power Technol Co Lt, Cent Res Inst, Beijing 102209, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100191, Peoples R China; 3.Beihang Univ BUAA, Sch Mat Sci & Engn, Beijing 100191, Peoples R China;
推荐引用方式 GB/T 7714	Mao L,Jin HJ,Ye F,et al. Effect of thermal cycles on the laser beam welded joint of AA2060 alloys[J]. JOURNAL OF MATERIALS RESEARCH,2018,33(20):3439-3448.
APA	Mao L,Jin HJ,Ye F,Wang FF,Zheng G,&Wu SJ.(2018).Effect of thermal cycles on the laser beam welded joint of AA2060 alloys.JOURNAL OF MATERIALS RESEARCH,33(20),3439-3448.
MLA	Mao L,et al."Effect of thermal cycles on the laser beam welded joint of AA2060 alloys".JOURNAL OF MATERIALS RESEARCH 33.20(2018):3439-3448.