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| 形状记忆合金YAG激光焊接 | |
| 引用本文： | 王蔚,陈庚,陈俐,赵兴科,黄继华. 形状记忆合金YAG激光焊接[J]. 应用激光, 2008, 28(3) |
| 作者姓名： | 王蔚 陈庚 陈俐 赵兴科 黄继华 |
| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083;北京航空制造工程研究所高能束流加工技术重点实验室,北京,100024;空军航空大学,吉林长春,130022 2. 北京科技大学材料科学与工程学院,北京,100083 3. 北京航空制造工程研究所高能束流加工技术重点实验室,北京,100024 |
| 摘 要： | 采用YAG激光焊机对TiNi形状记忆合金板材进行焊接性研究.通过大量工艺试验确定合适的激光工艺参数范围.分别对焊接接头各部分微观组织特点、组织结构、记忆性能、抗拉强度进行了研究.研究发现,焊缝组织晶粒粗大,有新相Ni3Ti的析出;焊接热影响区较窄;焊接接头的形状恢复率是母材的97.4%;母材抗拉强度为Il55MPa,焊接接头抗拉强度达798MPa,是母材抗拉强度的69%,断裂部位在焊缝中心. |
| 关 键 词： | 形状记忆合金 Ni-Ti YAG激光焊 形状恢复率 记忆合金 激光焊接 Shape Memory Alloy 焊缝中心 断裂部位 焊接热影响区 晶粒粗大 焊缝组织 发现 抗拉强度 记忆性能 组织结构 组织特点 微观 焊接接头 范围 激光工艺参数 工艺试验 研究 |
YAG Laser Welding of Shape Memory Alloy |
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| Wang Wei,Chen Geng,Chen Li,Zhao Xingke,Huang Jihua. YAG Laser Welding of Shape Memory Alloy[J]. Applied Laser, 2008, 28(3) | |
| Authors: | Wang Wei Chen Geng Chen Li Zhao Xingke Huang Jihua |
| Affiliation: | Wang Wei1,2,3,Chen Geng1,Chen Li2,Zhao Xingke1,Huang Jihua1(1 School of Material Science , Engineering,Beijing University of Science , Technology,Beijing 100083,China,2Key Laboratery for High Energy Density Beam Processing Technology,Beijing Aeronautical ManufacturingTechnology Research Institute,Beijing 100024,3Aviation university of Air force,Changchun Jilin 130022,China) |
| Abstract: | With high energy YAG Laser beam method,the weld ability of the TiNi shape memory alloy sheet was studied.The relationship among parameters and its proper adjusting range are acquired.Thus the range of the parameters used in the engineering application was obtained.Some characteristics such as phase,microstructure,shape memory properties and tensile strength of the welded joint were discussed. Results show that the crystal grain in welded joint is large,and new phases such as Ni3Ti separate out.Furthermore,t... |
| Keywords: | Shape memory alloy NiTi Laser welding |
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