钛含量对Inconel 690镍基合金力学性能的影响  

Effect of Titanium Content on Mechanical Properties of Nickel Base Alloy Inconel 690

作　　者：丑英玉[1,2] 程世长[2] 刘正东[2] 廖丕博[1] 张钱珍[1,2] 

机构地区：[1]昆明理工大学机电工程学院,昆明650093 [2]钢铁研究总院结构材料研究所,北京100081

出　　处：《特殊钢》2009年第3期63-65,共3页Special Steel

摘　　要：研究了Ti含量(0.35%～1.10%)对Inconel 690镍基合金(%:0.034～0.036C、29.40～29.68Cr、9.11～9.22Fe、0.34～0.36A1、0.004 4～0.004 5N)950～1 100℃水冷+715℃15～100 h空冷后的室温和350℃的组织和力学性能。结果表明,含1.10%Ti合金的强度(R_m和R_(p0.2))较含0.35%～0.70%Ti合金的强度高200～400 MPa,强度提高的主要原因为715℃时效后1.10%Ti合金析出3.70%～3.99%γ′强化相,而0.35%～0.70%Ti合金715℃时效后γ′强化相析出量仅为0～0.53%。Effect of Ti content （0. 35% - 1.10% ） on structure and mechanical properties at ambient and 350 ℃ for nickel base alloy Inconel 690 （% ： 0. 034 -0. 036C, 29. 40 - 29. 68Cr, 9. 11 - 9. 22Fe, 0. 34 - 0. 36Al, 0.0044- 0.004 5N） solid solution treated at 950 - 1 100 ℃, water quenched and aged at 715 ℃ for 15 - 100 h, air cooled has been studied. Results showed that the strength （Rm and RP0.2 ） of 1.10% Ti alloy was by 200 - 400 MPa higher than that of 0. 55% - 0. 70% Ti alloy, the main reason of increasing strength was 3.70% -3. 99% γ＇ strengthening phase precipitated in 1.10% Ti alloy after aging at 715 ℃, while only 0 - 0. 53% γ＇ strengthening phase precipitated in 0. 35% -0. 70% Ti alloy after aging at 715 ℃.

关 键 词：INCONEL 690镍基合金 钛含量 力学性能 

分 类 号：TG113[金属学及工艺—物理冶金]