The Effect of Nitrogen on High Temperature Deformation Behaviors in Type 316L Stainless Steel


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Both tensile and strain controlled low cycle fatigue (LCF) tests were conducted for 316L and 316LN at 550oC and 600oC to investigate the nitrogen effect on the deformation behavior of type 316L stainless. The waveform of LCF was a symmetrical triangle with a constant strain rate of 4×10-3/s was employed for most tests. It shows that the addition of nitrogen in the alloy results in an increase in tensile strength but a decrease in ductility. Both the alloys exhibited cell structure after severe tensile deformation. However, after low cycle fatigue, only planar slip band is observed in 316LN, whereas cell structure is still the main feather of microstructure in 316L. This is due to the strong interstitial-substitutional Mo-N pairs and various stress strain conditions.



Key Engineering Materials (Volumes 345-346)

Edited by:

S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim




F. Liu et al., "The Effect of Nitrogen on High Temperature Deformation Behaviors in Type 316L Stainless Steel ", Key Engineering Materials, Vols. 345-346, pp. 69-72, 2007

Online since:

August 2007




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