飞机起落架用超高强钢应力腐蚀开裂研究进展

李双, 董立谨, 郑淮北, 吴铖川, 王洪利, 凌东, 王勤英

Research Progress of Stress Corrosion Cracking of Ultra-high Strength Steels for Aircraft Landing Gear

LI Shuang, DONG Lijin, ZHENG Huaibei, WU Chengchuan, WANG Hongli, LING Dong, WANG Qinying

表1 几种超高强钢中的主要化学成分[22] (mass fraction / %)

Table 1 Chemical compositions of several typical ultra-high strength steels [22]

Material C Ni Co Mo Cr V W Ti Fe 300M 0.42 1.8 - 0.4 0.8 0.1 - - Balance AerMet100 0.23 11.1 13.4 1.2 3.0 - - - Balance Ferrium M54 0.30 10.1 7.0 2.1 1.0 0.1 1.3 - Balance Ferrium S53 0.21 5.5 14.1 2.0 10.0 0.3 1.0 - Balance Custom 465 0.01 10.9 0.1 0.9 11.4 - 0.7 1.6 Balance