6082- T6铝合金搅拌摩擦焊组织演变与力学性能
王希靖; 魏学玲; 张亮亮
2018
Source Publication焊接学报
ISSN0253-360X
Volume39Issue:3Pages:1-5
Abstract通过透射电子显微镜、扫描电子显微镜、拉伸试验机和显微硬度计对6082- T6铝合金搅拌摩擦焊接头焊缝区组织演变和力学性能进行分层研究.结果表明,在焊核区上层,材料发生塑性变形,晶格畸变能增加,为降低能量,大量的位错集聚成亚结构边界发生动态回复.同时在焊接热循环的作用下发生动态再结晶,导致焊缝区上层晶粒细小.在焊核区下层,主要受到搅拌针搅拌作用,轴肩产热通过扩散过程传递到下层的热量减少,发生动态回复和动态再结晶程度低于焊缝上层,晶粒粗大.前进侧和后退侧热影响区均出现棒状beta'沉淀相.对应焊缝上、下两层硬度都呈W形分布,焊缝上层硬度高于焊缝下层硬度,最小值出现在前进侧.沿着焊缝长度方向上层和下层的抗拉强度分别为205, 186 MPa,呈降低趋势,为韧性断裂.
Keyword6082- T6铝合金 搅拌摩擦焊 组织演变
Indexed ByCSCD
Language中文
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMETALLURGY METALLURGICAL ENGINEERING
CSCD IDCSCD:6228112
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/73690
Collection材料科学与工程学院
Affiliation兰州理工大学, 有色金属先进加工与再利用甘肃省省部共建国家重点实验室, 兰州, 甘肃 730050, 中国
First Author AffilicationLanzhou University of Technology
First Signature AffilicationLanzhou University of Technology
Recommended Citation
GB/T 7714
王希靖,魏学玲,张亮亮. 6082- T6铝合金搅拌摩擦焊组织演变与力学性能[J]. 焊接学报,2018,39(3):1-5.
APA 王希靖,魏学玲,&张亮亮.(2018).6082- T6铝合金搅拌摩擦焊组织演变与力学性能.焊接学报,39(3),1-5.
MLA 王希靖,et al."6082- T6铝合金搅拌摩擦焊组织演变与力学性能".焊接学报 39.3(2018):1-5.
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