Effect of Martensitic Transformation on Serration of 304L Steel at Cryogenic Temperatures

2006 ◽  
Author(s):  
K. Shibata
Keyword(s):  
Martensitic Transformation ◽  
Cryogenic Temperatures ◽  
304L Steel

Simulation and experimental investigation of strain rate impact on martensitic transformation in 304L steel through dome test

2016 ◽  
Vol 31 (14) ◽  
pp. 2136-2146 ◽  
Author(s):  
Hojjatollah Fathi ◽  
Esmaeil Emadoddin ◽  
Hamid Reza Mohammadian Semnani
Keyword(s):  
Experimental Investigation ◽  
Martensitic Transformation ◽  
Strain Rate ◽  
Image Position ◽  
304L Steel

Abstract

scholarly journals Study of Martensitic Transformation in 304L Austenitic Stainless Steel after Tensile and Low Cycle Fatigue Tests

2019 ◽  
Vol 9 (1) ◽  
pp. 22 ◽  
Author(s):  
Gláucio Soares da Fonseca ◽  
Silvana Carreiro de Oliveira ◽  
Jéssica Gadêlha Chaves ◽  
Pedro Pena Leite ◽  
Fabiane Roberta Freitas Da Silva ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Martensitic Transformation ◽  
Volume Fraction ◽  
Electron Backscatter Diffraction ◽  
Low Cycle Fatigue ◽  
Trip Effect ◽  
Cycle Fatigue ◽  
High Concentration ◽  
Stress Concentrators ◽  
304L Steel

There are many studies on austenitic stainless steels with transformation induced plasticity (TRIP). Basically, in these steels, there is a significant increase in strength and toughness with the transformation of austenite to martensite. 304L steel finds extensive application in industry. Studies relating to martensitic transformation with plastic deformation are quite common. Many studies involve monotonic loading relating to the martensite formed. In practice, 304L steels are subject to distinct types of loading and possibly with stress concentrators. Thus, also in smaller quantities, it is possible to find in the literature studies involving cyclic loading with the TRIP effect. To contribute to the literature on the analysis of the TRIP effect on these steels, 304L steel samples with stress concentrators underwent interrupted monotonic tensile tests. Optical microscopy (OM) and x-ray diffraction (XRD) technique characterized the martensitic transformation. Other 304L steel samples with a stress concentrator underwent a low cycle fatigue test. The martensitic transformation, in this case, was possible to follow with the electron backscatter diffraction technique (EBSD). The samples after the interrupted monotonic tests show a high martensite volume fraction formed 1mm away from the notch (30% to 50%), due to the plastic deformation suffered. From 5.5mm of the notch, the samples again display a microstructure like that of the as-received (AR) sample. For the low cycle fatigue tested sample, the high concentration of deformation-induced martensite was within 15mm of the discontinuity. Approximately 0.5mm from the circular discontinuity, the sample again has a microstructure like the initial sample (IS).

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