| Ti-6Al-4V钛合金搅拌摩擦焊缝的织构(英文) |
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| 引用本文： | 周利,刘会杰,吴林志.Ti-6Al-4V钛合金搅拌摩擦焊缝的织构(英文)[J].中国有色金属学会会刊,2014,24(2):368-372. |
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| 作者姓名： | 周利 刘会杰 吴林志 |
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| 作者单位： | [1]哈尔滨工业大学先进焊接与连接国家重点实验室,哈尔滨150001 [2]哈尔滨工业大学威海山东省特种焊接技术重点实验室,威海264209 [3]哈尔滨工业大学复合材料与结构研究所,哈尔滨150001 |
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| 基金项目： | Project （2010CB731704） supported by the National Basic Research Program of China，Project （AWJ-M13-11） supported by State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, China，Project （2012M511470） supported by China Postdoctoral Science Foundation |
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| 摘 要： | 采用W-Re合金搅拌头对α+β双相Ti-6Al-4V钛合金进行搅拌摩擦焊并在合适的工艺参数下获得无缺陷焊缝,利用取向成像显微镜对Ti-6Al-4V钛合金搅拌摩擦焊缝的织构进行研究。Ti-6Al-4V钛合金母材为轧制退火态,组织由变形的初生α相和转变β组织构成,具有典型的轧制织构。焊核区组织与母材明显不同,由大量的等轴动态再结晶晶粒组成,并在搅拌摩擦焊过程中形成{φ1=30°,φ=62°,φ2=30°}取向的织构。
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| 关 键 词： | 搅拌摩擦焊 钛合金 织构 取向成像显微镜 |
| 收稿时间： | 7 February 2013 |
Texture of friction stir welded Ti-6Al-4V alloy |
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| Li ZHOU,Hui-jie LIU,Lin-zhi WU.Texture of friction stir welded Ti-6Al-4V alloy[J].Transactions of Nonferrous Metals Society of China,2014,24(2):368-372. |
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| Authors: | Li ZHOU Hui-jie LIU Lin-zhi WU |
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| Affiliation: | 1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China; 2. Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, Weihai 264209, China; 3. Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, China) |
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| Abstract: | Theα＋βtitanium alloy, Ti-6Al-4V, was welded by friction stir welding using a W-Re pin tool, and the defect-free weld was produced with proper welding parameters. Texture of the Ti-6Al-4V friction stir weld was studied by orientation imaging microscopy. The as-received Ti-6Al-4V sheet mill annealed was composed of elongated primary α and transformed β. A typical rolling texture was observed in the base material. The microstructure of the stir zone was significantly different from that of the base material. The stir zone was characterized by the presence of considerable amount of equiaxed dynamically recrystallized grains and a texture around{Ф1=30°,φ=62°,Ф2=30°}was developed during the friction stir welding. |
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| Keywords: | friction stir welding titanium alloy texture orientation imaging microscopy |
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