摘要
按照ASTM G28-02标准方法A腐蚀方法,对N06600镍基合金原材料固溶热处理供货态、550℃热处理、620℃热处理、915℃热处理+空冷冷却、915℃热处理+风冷冷却等不同热处理的试样进行晶间腐蚀对比试验。晶间腐蚀率结果由低到高依次为:固溶热处理、915℃热处理+风冷、915℃热处理+空冷、550℃热处理、620℃热处理。对各热处理状态下的试样进行了显微组织试验,结果表明碳化物析出的数量越多,晶间腐蚀速率越高。
According to ASTM G28-02 standard Method A corrosion method,the intergranular corrosion tests of N06600 nickel-based alloy were conducted on the samples of raw material solution heat treatment supply,550℃heat treatment,620℃heat treatment,915℃heat treatment+air cooling,and 915℃heat treatment+wind cooling different heat treatment.The results of intergranular corrosion rate from low to high are as follows:solid solution heat treatment,915℃heat treatment+wind cooling,915℃heat treatment+air cooling,550℃heat treatment,620℃heat treatment.The microstructure of the specimens under different heat treatment conditions was tested,and the results showed that the more the amount of carbide precipitated phase,the faster the intergranular corrosion rate.
作者
刘玉祥
商健
Liu Yuxiang Shang Jian(Morimatsu(Jiang Su)Heavy Industry Co.,Ltd.,Shanghai Branch,Shang Hai 201323)
出处
《西部特种设备》
2022年第5期59-64,共6页
Western Special Equipment
