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Effect of thermal cycles on the laser beam welded joint of AA2060 alloys
Mao L1; Jin HJ(晋会锦)2; Ye F1; Wang FF1; Zheng G3; Wu SJ1
Source PublicationJOURNAL OF MATERIALS RESEARCH
2018-10-29
Volume33Issue:20Pages:3439-3448
ISSN0884-2914
Abstract

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.

DOI10.1557/jmr.2018.229
Indexed BySCI ; EI
Language英语
WOS IDWOS:000452651700009
WOS KeywordMECHANICAL-PROPERTIES ; HEAT-TREATMENT ; LI ; MICROSTRUCTURE ; WELDABILITY ; BEHAVIOR ; AG
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
ClassificationQ3
Ranking2
ContributorWu, Sujun
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78967
Collection非线性力学国家重点实验室
Affiliation1.Beihang Univ BUAA, Sch Mat Sci & Engn, Beijing 100191, Peoples R China;
2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100191, Peoples R China;
3.Principle Engineer State Nucl Power Technol Co Lt, Cent Res Inst, Beijing 102209, Peoples R China
Recommended Citation
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.
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