激光与光电子学进展, 2019, 56 (10): 101404, 网络出版: 2019-07-04
不同热处理状态的Ti2AlNb合金激光焊接接头组织与性能
Microstructures and Properties of Laser Welded Ti2AlNb-Based Alloy Joints Under Different Heat Treatment States
图 & 表
图 1. Ti-22Al-27Nb合金的微观组织。(a)金相微观组织;(b) SEM图
Fig. 1. Microstructure of Ti-22Al-27Nb alloy. (a) Metallographic microstructure; (b) SEM image
图 2. 拉伸试样尺寸。(a)室温;(b) 650 ℃
Fig. 2. Size of tensile specimen. (a) Room temperature; (b) 650 ℃
图 4. 热轧制板材的激光焊接接头热影响区组织。(a)热影响区宏观组织;(b)远离焊缝侧(A区); (c)中部区域(B区);(d)靠近焊缝侧(C区)
Fig. 4. Microstructure of heat affected zone of laser welded sheet joint under hot rolling. (a) Macrostructure of heat affected zone; (b) zone away from fusion zone (A zone); (c) middle zone (B zone); (d) zone close to fusion zone (C zone)
图 7. HT1板材的焊缝组织。(a)金相微观组织;(b) SEM图
Fig. 7. Microstructure of weld of HT1 sheet. (a) Metallographic microstructure; (b) SEM image
图 8. HT2板材的组织。(a)晶界;(b)晶内
Fig. 8. Microstructure of HT2 sheet. (a) Grain boundary; (b) within grains
图 11. 不同状态板材激光焊接接头室温力学性能
Fig. 11. Mechanical properties at room temperature of laser welded sheet joints under different states
图 12. 不同状态板材激光焊接接头室温拉伸曲线
Fig. 12. Tensile curves at room temperature of laser welded sheet joints under different states
图 13. 不同状态板材激光焊接接头650 ℃的力学性能
Fig. 13. Mechanical properties at 650 ℃ of laser welded sheet joints under different states
表 1Ti-22Al-27Nb合金化学成分(质量分数,%)
Table1. Chemical compositions of Ti-22Al-27Nb alloy(mass fraction, %)
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刘博, 雷正龙, 周恒, 汪宏辉. 不同热处理状态的Ti2AlNb合金激光焊接接头组织与性能[J]. 激光与光电子学进展, 2019, 56(10): 101404. Bo Liu, Zhenglong Lei, Heng Zhou, Honghui Wang. Microstructures and Properties of Laser Welded Ti2AlNb-Based Alloy Joints Under Different Heat Treatment States[J]. Laser & Optoelectronics Progress, 2019, 56(10): 101404.