Strain-Induced Martensitic Phase Transformation by Low-Cycle Fatigue in AISI 316L Stainless Steel

Y.C. Jeon; C.S. Kim; Ho Ki; S.I. Kwun; J.W. Byeon

doi:10.4028/www.scientific.net/MSF.580-582.597

Paper Titles

A Rate-Dependent Hysteresis Model for Structural Steel (SM490) Considering the Coupled Effect of Strain Rate Hardening and Temperature Rise
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Angular Distortion Reduction by In-Process Control Welding Using Back Heating Source
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Effect of Weld HAZ Softening on Tensile Strength of Welded Joint with Weld HAZ Softening
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Fatigue Crack Growth Characteristics in Dissimilar Weld Metal Joint
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Strain-Induced Martensitic Phase Transformation by Low-Cycle Fatigue in AISI 316L Stainless Steel
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A Study for the Fatigue Failure Mode Assessment of Fillet Weldments
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Finite Element Analysis of the Effect of Residual Stress on Mechanical Behavior of Welded Plates
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Optional Correlation Function Method in Kriging for Stochastic Optimal Design
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Characteristics of the Static and Dynamic Behavior of Steel Piles with a Welded Joint
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Strain-Induced Martensitic Phase Transformation by Low-Cycle Fatigue in AISI 316L Stainless Steel

Abstract:

The evolution of the strain-induced α′ martensite during the cyclic deformation of austenitic AISI 316L stainless steel (SS) was investigated. The low-cycle fatigue (LCF) test was conducted at various strain amplitudes in air. The amount of α′ martensite was determined for the fatigue-failed specimens as well as for the specimens interrupted after a specific number of cycles. The volume fraction of α′ martensite increased with increasing strain amplitude and number of fatigue cycles. The cyclic hardening behavior was discussed in terms of the dislocation density and strain-induced α′ martensite transformation.