|
|
|
| DEFORMATION-INDUCED MARTENSITE PHASE TRANSITION AND ITS EFFECT ON PITTING SUSCEPTIBILITY FOR 1Cr18Ni9Ti STAINLESS STEEL |
| Xu Chunchun;He Ke |
|
|
|
|
Abstract Specimens of 1Cr18Ni9Ti stainless steel were prepared by low temperature elongation deformation at－70℃ to obtain various martensite contents．The phase transition process was examined by TEM，XRD and metallography.Pitting susceptibility of the steel in 1 mol/L NaCl was evaluated by electrochmical hysteresis technique and polarization resistance measurements. Both α’－and ε-martensite were observed after the elongation deformation.The content of α’－martensite increased with increasing degree of deformation，while the amount of ε－martensite was consistently low and remained unchanged.These ferromagnetic phases had significant effect on the pitting susceptibility of the steel.When their content was less than 4．58％ or more than 25.5％，the pitting susceptibility increased with the increasing amount of ferromagnetic phases.In the range from 4.58％ to 25.5％，however，the specimens containing more martensite were found to be less susceptible to pitting．These findings were briefly explained.
|
|
Received: 25 February 1996
|
| 1CigadaA,etal．Corrosion,1982,22(6):5592日本不锈钢孔蚀电位测量标准《JISG0577-1981》3SeetharamanV,KrishnanR．JournalofMaterialsScience,1981,16:5234上海交通大学．金相分析,北京:国防工业出版社,19825WarnglenG．CorrosionScience,1974,14:3316HanninenHE．Int．MetalsRev,1979,p247宋诗哲·腐蚀电化学研究方法,北京:化学工业出版社,1988,p18,p114 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
