用U形恒应变实验方法,研究了20g、16MnR、Q235-A基材及焊接材料浸泡在不同浓度硝酸铵溶液中的开裂敏感性,同时也讨论了硫的氧化物对硝酸盐露点腐蚀开裂敏感性的影响.结果表明:焊接材料比基材更易于发生硝酸盐露点腐蚀开裂,20 g比16MnR、Q235-A在硝酸盐中有更低的开裂敏感性,硫的氧化物增加了开裂敏感性.在此基础上,还探讨了硝酸盐露点腐蚀开裂的类型和机理.
参考文献
[1] | 王志彬,王德武.二套催化再生系统设备失效分析[J].化工腐蚀与防护,1998,15(1):37 |
[2] | C S Carter, M V Hyat. Pdroc. Int. Conf. on Stress Corrosion Cracking and Hydrogen EMbrittlement of Iron Base Alloys[C].NACE, Houston, 1977. 351. |
[3] | R E Pollard. Symposium on Stress Corrosion Cracking of Metals[M]. ASTM, 1944:457. |
[4] | M L Holzworth, R M Girdler, L P Costas et al. How to prevent strees corrosion cracking of radioactive waste storage tanks[J ].Materials Protection, 1968 ( 1 ): 36. |
[5] | 王凤平,李明,李晓刚,等.混合烟气体系露点温度的热力学分析[J].石油化工腐蚀与防护,2002,19(1):56. |
[6] | R N Parkins, R Usher. Proc. on the Ist International Congress on Metallic Corrosion[C]. NACE, Houston, 1962. 289. |
[7] | .张学元,杜元龙.钢铁发生硫化物应力腐蚀开裂的实验方法与技术[J]材料保护,1995,28(10):18 |
[8] | D J Leeds, N A Lockington. Influence of the cation on the mode of stress- corrosion failure of iron in nitrate solution[J]. Brit.Corros. J, 1970(5); 167. |
[9] | J Fils. Action of carbon in stress corrosion cracking of mild steel in nitrate solution[ J ]. Corrosion, 1973, 20( 1 ): 37. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%