深潜器耐压壳用钛合金保载疲劳服役可靠性研究进展

张滨, 田达, 宋竹满, 张广平

Research Progress in Dwell Fatigue Service Reliability of Titanium Alloys for Pressure Shell of Deep-Sea Submersible

ZHANG Bin, TIAN Da, SONG Zhuman, ZHANG Guangping

表2 TC4、TC4 ELI、Ti80及Ti62A钛合金的基本力学性能指标^{[2,13,22,24~34]}

Table 2 Basic mechanical properties of TC4, TC4 ELI, Ti80, and Ti62A alloys at room temperature^{[2,13,22,24-34]}

Alloy	σ_s / MPa	σ_b / MPa	A / %	Z / %	σ_sc / MPa	σ_bc / MPa	A_kv2 / J	Ref.
TC4	885-1027	924-1069	8.9-16.4	38.4-46.2	857-1016	-	30-62	[25,31-33]
TC4 ELI	841-928	960-1004	12.0-18.0	33.0-54.0	991-1005	1791-1823	28-58	[24,26,28,29]
Ti80	785-897	880-964	7.0-16.0	14.0-50.0	870	-	35-63	[2,13,26,27,30,34]
Ti62A	960-1210	1185-1315	8.5-14.0	17.0-30.0	1007-1164	-	-	[22,35]