钛合金及其扩散焊疲劳特性研究进展

李细锋, 李天乐, 安大勇, 吴会平, 陈劼实, 陈军

Research Progress of Titanium Alloys and Their Diffusion Bonding Fatigue Characteristics

LI Xifeng, LI Tianle, AN Dayong, WU Huiping, CHEN Jieshi, CHEN Jun

表1 常用钛合金国内外牌号和名义化学成分[10,11]

Table 1 Brands and nominal chemical compositions of common titanium alloys[10,11]

Titanium alloy type Domestic Similar foreign brand Nominal chemical composition Heat treatment Tensile brand (mass fraction / %) strength MPa α type TA1 USA, Ti-40 Ti Annealing 300 Near α type TA18 USA, Ti-3-2.5 Ti-3Al-2.5V Annealing 620 TA15 RUS, BT20 Ti-6.5Al-2Zr-1Mo-1Al Annealing 930 α + β type TC4 USA, Ti-6-4 / RUS, BT6 Ti-6Al-4V Annealing 895 TC18 RUS, BT22 Ti-5Al-5Mo-5V-1Cr-1Fe Double annealing 1080 TC11 RUS, BT9 Ti-6.5Al-3.5Mo-1.5Zr-0.3Si Annealing 1030 TC21 USA, Ti-6-22-22s Ti-6Al-2Sn-2Zr-3Mo-1Cr-2Nb-xSi Double annealing 1100 Near β type TB6 USA, Ti-1023 Ti-10V-2Fe-3Al Solution and aging 1105 Metastable β type TB5 USA, Ti-15-3 Ti-15V-3Cr-3Sn-3Al Solution and aging 1080 TB8 USA, β21S Ti-15Mo-3Al-2.7Nb-0.2Si Solution and aging 1250