中国激光, 2018, 45 (11): 1102010, 网络出版: 2018-11-15
钛/铝激光焊接的微观组织及力学性能 
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Microstructure and Mechanical Properties of Laser Welded Ti/Al Alloys
图 & 表
图 1. Ti-6Al-4V合金和6082 Al合金的激光焊接。(a)示意图;(b)焊缝成形
Fig. 1. Laser welding of Ti-6Al-4V alloy and 6082 Al alloy. (a) Schematic; (b) weld formation
图 2. 激光热源。(a)激光功率密度分布;(b)模拟热源模型
Fig. 2. Laser heat-source. (a) Laser power density distribution; (b) heat-source model for simulation
图 3. 温度场云图及监控点热循环温度曲线。(a)激光偏置铝侧焊接时钛侧的界面温度分布;(b)焊接熔池温度分布;(c)横截面温度分布;(d)热循环温度曲线
Fig. 3. Temperature field cloud maps and thermal cycling temperature curves at monitoring points. (a) Temperature distribution at interface for laser offset welding on Al sheet; (b) temperature distribution of welding pool; (c) cross-sectional temperature distribution; (d) thermal cycling temperature curves
图 4. Ti-6Al-4V合金和6082 Al合金结合界面的二维表面图
Fig. 4. 2D surface map of bonding interface of Ti-6Al-4V alloy and 6082 Al alloy
图 5. Ti-6Al-4V合金和6082 Al合金结合界面的三维表面形貌。(a)原始形貌;(b)中值除噪后的结果
Fig. 5. 3D surface profile of bonding interface of Ti-6Al-4V alloy and 6082 Al alloy. (a) Original profile; (b) result after median denoising
图 6. 钛/铝激光焊接头的显微图。(a)铝侧BM及HAZ;(b)焊缝区;(c)近钛侧焊缝区;(d)钛/铝结合界面及金属间化合物层
Fig. 6. Micrographs of laser welded Ti/Al joints. (a) Al BM and HAZ; (b) weld zone; (c) weld zone near Ti side; (d) Ti/Al bonding interface and intermetallic compound layer layer
图 7. 结合界面的电子扫描图及能谱线扫描图。(a)钛/铝金属间化合物层;(b)各主要成分的扫描能谱线
Fig. 7. SEM image and EDS results of bonding interface. (a) Ti/Al intermetallic compound; (b) scan energy spectral lines of all main components
图 8. 钛/铝结合界面能谱扫描的元素分布图。(a)结合界面扫描电镜图;(b)能谱扫描分层图像;(c) Ti元素分布图;(d) Al元素分布图;(e) V元素分布图
Fig. 8. Element distribution maps at Ti/Al bonding interface by EDS scan. (a) SEM image of bonding interface; (b) layered image by EDS scan; (c) distribution map of Ti element; (d) distribution map of Al element; (e) distribution map of V element
图 10. XRD分析结果及拉伸强度测试结果。(a) XRD数据;(b)拉伸强度测试结果
Fig. 10. XRD and tensile strength test results. (a) XRD data; (b) tensile strength test results
图 11. 断口及表面能谱。(a)断口形貌;(b)表面能谱测试结果
Fig. 11. Fractures and surface energy spectra. (a) Fracture morphology; (b) test results of surface energy spectra
表 1双椭球热源模型的参数设置
Table1. Parameter setting for double-ellipsoid heat-source model
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郭顺, 彭勇, 朱军, 高琼, 周琦, 崔崇. 钛/铝激光焊接的微观组织及力学性能[J]. 中国激光, 2018, 45(11): 1102010. Guo Shun, Peng Yong, Zhu Jun, Gao Qiong, Zhou Qi, Cui Chong. Microstructure and Mechanical Properties of Laser Welded Ti/Al Alloys[J]. Chinese Journal of Lasers, 2018, 45(11): 1102010.
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