Effect of anions on stress corrosion cracking behaviors of ultra-high strength steel 23Co14Ni12Cr3Mo

被引：0
作者：
Jian-hua Liu
Chen Wen
Mei Yu
Song-mei Li
Bing Wang
机构：
[1] Beihang University,School of Materials Science and Engineering
来源：
Journal of Central South University | 2014年 / 21卷
关键词：
23Co14Ni12Cr3Mo; ultra-high strength steel; chloride; sulfate; carbonate; stress corrosion cracking;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effects of chloride, sulfate and carbonate anions on stress corrosion behaviors of ultra-high strength steel 23Co14Ni12Cr3Mo were studied by stress corrosion cracking (SCC) test method using double cantilever beam (DCB) specimens. The SCC morphology was observed by using scanning electron microscopy (SEM) and the composition of corrosion products was analyzed by using energy dispersive spectrometer (EDS). The results show that the crack propagates to bifurcation in NaCl and Na2SO4 solution, while the crack in Na2CO3 solution propagates along the load direction. The SCC rate in NaCl solution is the highest, while lower in Na2SO4 solution and little in Na2CO3 solution. From the SEM morphologies, quasi-cleavage fracture was observed in NaCl and Na2SO4 solutions, but intergranular features in Na2CO3 solution. The mechanism of anion effect on SCC of steel 23Co14Ni12Cr3Mo was studied by using full immersion test and electrochemical measurements.
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页码：2117 / 2124
页数：7
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  • [1] Ji G-l(2010)Research on the dynamic recrystallization kinetics of Aermet 100 steel [J] Materials Science and Engineering A 527 2350-2355
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  • [3] Li Q-h(2010)Effects of chromium on the corrosion and electrochemical behaviors of ultra-high strength steels [J] International Journal of Minerals, Metallurgy and Materials 17 282-289
  • [4] Li H-q(1995)Environmental cracking of high-strength steels [J] Materials & Design 164 195-197
  • [5] Li Zhi(2011)A review of present mechanisms of transgranular stress corrosion cracking [J] Journal of the Mechanical Behavior of Materials 7 1-14
  • [6] Ji G-l(2011)Role of residual stresses induced by industrial fabrication on stress corrosion cracking susceptibility of austenitic stainless steel [J] Materials and Design 32 3823-3831
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  • [8] Li Q-h(2010) solutions [J] Corrosion Science 52 292-302
  • [9] Li H-q(2010)Influence of alkali, silicate, and sulfate content of carbonated concrete pore solution on mild steel corrosion behavior [J] Materials and Corrosion 61 111-124
  • [10] Li Zhi(2011)Coupling effects of influence factors on probability of corrosion initiation time of reinforced concrete [J] Journal of Central South University of Technology 18 223-229
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