scholarly journals Nondestructive Evaluation of Cracks and Plastic Deformation in an Austenitic Stainless Steel by Using Martensitic Transformation

2019 ◽  
Vol 68 (12) ◽  
pp. 929-935
Author(s):  
Yuji NAKASONE
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Martensitic Transformation ◽  
Austenitic Stainless Steel ◽  
Nondestructive Evaluation

206 Effect of stress-induced martensitic transformation on cyclic elastic-plastic deformation of austenitic stainless steel

2009 ◽  
Vol 2009.47 (0) ◽  
pp. 57-58
Author(s):  
Kouhei OGAWA ◽  
Naoki KANEORI ◽  
Hiroshi HAMASAKI ◽  
Takeshi UEMORI ◽  
Fusahito TOSHIDA
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Martensitic Transformation ◽  
Austenitic Stainless Steel ◽  
Elastic Plastic

New orientation relationship in martensitic transformation in austenitic stainless steel welded explosively

1978 ◽  
Vol 36 (1) ◽  
pp. 632-633
Author(s):  
T. Yamashita ◽  
T. Onzawa
Keyword(s):  
Plastic Deformation ◽  
High Pressure ◽  
Stainless Steel ◽  
Martensitic Transformation ◽  
Austenitic Stainless Steel ◽  
Orientation Relationship ◽  
Martensitic Transformations ◽  
Steel Plates ◽  
Orientation Relationships ◽  
Rapid Plastic Deformation

Martensitic transformation induced by plastic deformation in 18/8 stainless steel has been extensively investigated by many workers. Venablel has proposed that the orientation relationships in transformations are (111)γ// (00.1)ε// (011)α and [101]γ//[11.0]ε//[lll]α. Since metals welded explosively or shock loaded are subjected to rapid plastic deformation under a high pressure, the aspects of martensitic transformations are expected to be different from those reported hitherto. The purpose of the present experiment is to show the new orientation relationship in transformation and the new aspects of transformations in 18/8 stainless steel welded explosively as well as shock loaded. The atomic movements required in transformation are also considered.Austenitic stainless steel plates, 3×50×200 mm, were heated in vacuum at about 700°C for 30 min to transform existing ε and α phases into γ phase. They were welded explosively by using two kinds of explosives with detonation velocities of 2,400 m/s and 5,000 m/s.

Magnetic Characterization of SUS316L Deformed by High Pressure Torsion

2011 ◽  
Vol 239-242 ◽  
pp. 1300-1303
Author(s):  
Hong Cai Wang ◽  
Minoru Umemoto ◽  
Innocent Shuro ◽  
Yoshikazu Todaka ◽  
Ho Hung Kuo
Keyword(s):  
Plastic Deformation ◽  
High Pressure ◽  
Stainless Steel ◽  
Phase Transformation ◽  
Austenitic Stainless Steel ◽  
Volume Fraction ◽  
High Pressure Torsion ◽  
Austenitic Matrix ◽  
Magnetic Characterization

SUS316L austenitic stainless steel was subjected to severe plastic deformation (SPD) by the method of high pressure torsion (HPT). From a fully austenitic matrix (γ), HPT resulted in phase transformation from g®a¢. The largest volume fraction of 70% a¢ was obtained at 0.2 revolutions per minute (rpm) while was limited to 3% at 5rpm. Pre-straining of g by HPT at 5rpm decreases the volume fraction of a¢ obtained by HPT at 0.2rpm. By HPT at 5rpm, a¢®g reverse transformation was observed for a¢ produced by HPT at 0.2rpm.

Austenitic stainless steel bearing Nb compositional and plastic deformation effects

2008 ◽  
Vol 492 (1-2) ◽  
pp. 161-167 ◽  
Author(s):  
A.I. Zaky Farahat ◽  
T. El-Bitar ◽  
Eman El-Shenawy
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Austenitic Stainless Steel

In-situ EBSD study of the degradation behavior in a type 316 Austenitic Stainless Steel during plastic deformation

2021 ◽  
pp. 030932472098493
Author(s):  
Xiao Wang ◽  
Yuetao Zhang ◽  
Huaying Li ◽  
Ming-yu Huang
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Tensile Deformation ◽  
Target Surface ◽  
Local Orientation ◽  
Deformation Degree ◽  
Band Contrast

Type 316 steels have been heavily utilized as the structural material in many construction equipment and infrastructures. This paper reports the characterization of degradation in 316 austenitic stainless steel during the plastic deformation. The in-situ EBSD results revealed that, with the increase of plastic strain, the band contrast (BC) value progressively decreased in both grain and grain boundaries, and the target surface becomes uneven after the plastic tensile, which indicates that the increase of surface roughness. Meanwhile, the KAM and ρGND values are low in the origin specimen but increased significantly after the in-situ tensile. The results indicated that the KAM and ρGND are closely related to the deformation degree of the materials, which can be used as the indicator for assessing the degradation of 316 steel. Besides, the re-orientation of grain occurred after the tensile deformation, which can be recognized from the lattice orientation and local orientation maps.

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