Effect of rare earth lanthanum on intergranular corrosion of low NiCrMnN austenitic stainless steel

被引：0
|
作者：
Zhao, Li-Ping [1 ]
Yuan, Xue [1 ]
Li, Zhao [2 ]
机构：
[1] School of Materials and Metallurgy, Inner Monggolia University of Science and Technology, Baotou, China
[2] Key Laboratory of Multi Metal Resources Comprehensive Utilization of the Inner Mongolia Autonomous Region Baiyunebo Mine, Baotou, China
来源：
Chinese Rare Earths | 2015年 / 36卷 / 03期
关键词：
Chromium alloys - Copper compounds - Lanthanum - Copper alloys - Copper corrosion - Ternary alloys - Corrosion resistance - Manganese alloys - Heat treatment - Austenitic stainless steel - Intergranular corrosion;
D O I：
10.16533/J.CNKI.15-1099/TF.201503013
中图分类号：
学科分类号：
摘要：
The effect of RE on intergranular corrosion of low Ni austenitic stainless steel in different heat treatment is researched by Cu-CuSO4-16%H2SO4 hot acid soaking method and electrochemical potentiokinetic reactivation. The result shows that the sample is most seriously corroded without RE. For the two groups of test steel, there is more corrosive sulcus sensitizing heat treatment 2 h at 750 than 650. From the Cu-CuSO4-16% H2SO4 hot acid soaking method and the EPR activating rate data, the intergranular corrosion resistance ability is the highest with 0.02% of La, and become worse with 0.04% of La. ©, 2015, Editorial Office of Chinese Rare Earths. All right reserved.
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页码：78 / 83
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