四种飞机起落架用钢在模拟海水中的腐蚀行为研究

赵连红, 王英芹, 刘元海, 何卫平, 王浩伟

Corrosion Behavior of Four Steels for Landing Gear of Amphibious Aircraft in Simulated Seawater

ZHAO Lianhong, WANG Yingqin, LIU Yuanhai, HE Weiping, WANG Haowei

表1 4种超高强度钢的化学成分

Table1 Chemical compositions of ultra-high strength steel (mass fraction / %)

Material C Cr Mn Ni Si Mo V Fe 30CrMnSiNi2A steel 0.27-0.34 0.90-1.20 1.00-1.30 1.40-1.80 0.90-1.20 - - Bal. 30CrMnSiA steel 0.28-0.34 0.80-1.10 0.80-1.10 ≤0.030 0.90-1.20 - - Bal. 300M steel 0.41-0.46 0.65-0.95 0.65-0.90 1.60-2.00 1.45-1.80 0.30-0.40 0.05-0.10 Bal. A100 steel 0.21-0.27 2.50-3.30 ≤0.10 11.0-12.0 ≤0.10 1.00-1.30 (Co)13.3-13.5 Bal.