TC18钛合金大尺寸 β 晶粒制备及典型织构对力学性能的影响

TC18钛合金大尺寸 β 晶粒制备及典型织构对力学性能的影响

颜孟奇, 吴泽浩, 佟健博, 黄利军, 黄驿胜

Preparation of Large-Sized β Grains and Effect of Typical Textures on Mechanical Properties of TC18 Titanium Alloy

YAN Mengqi, WU Zehao, TONG Jianbo, HUANG Lijun, HUANG Yisheng

表1 TC18钛合金坯料沿不同方向测试的力学性能

Table 1 Mechanical properties in different directions of TC18 titanium alloy billet

Direction	R_m MPa	R_p0.2 MPa	A %	Z %	E GPa	a_ku J·cm^-2
<100>	982	936	14.0	36.6	96	26.25
<100>	979	936	16.7	55.6	96	31.25
<110>	1129	1081	12.5	28.4	118	52.50
<110>	1145	1072	10.9	27.4	115	40.00
<111>	1328	1275	11.1	56.0	125	58.75
<111>	1328	1276	11.7	58.3	124	53.75
No texture	1157	1136	16.5	51.6	110	49.50