Phase transformation system of austenitic stainless steels obtained by permanent compressive strain

Okayasu, Mitsuhiro; Tomida, Sai

doi:10.1016/j.msea.2016.12.101

Cited by 20 publications

(10 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Table 2, SFE was slightly larger for HR than for CR/A samples. The measured fractions of martensite are consistent with this result, in the sense that lower SFE values are associated with enhanced phase transformation because lead to the formation of stacking faults and shear bands that act as ε and αʹ martensite nucleation sites [1][2]4,3,5 .…”

Section: Resultssupporting

confidence: 83%

“…The product may be ε or αʹ-martensite. Nucleation of ε-martensite, which has a hexagonal compact structure, occurs at the intersections of stacking faults while nucleation of α′-martensite, which has a body centered cubic structure, occurs from ε-martensite and at intersections of shear bands, under the influence of the stacking fault energy (SFE) of the austenite phase [1][2][3] . Growth of the αʹ-martensite occurs from the successive nucleation and coalescence of new nuclei.…”

Section: Introductionmentioning

confidence: 99%

“…Induced martensitic transformation by rolling at 298 K (RR) and 155 K (CR). Analyses performed on whole,3 4 and 1 2 samples.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Mechanically Induced Martensitic Transformation of Hot Rolled and Annealed 304L Austenitic Stainless Steel at Room and Cryogenic Temperatures

2019

View full text Add to dashboard Cite

The 304L austenitic stainless steel is susceptible to mechanically induced martensitic transformation from slightly above room temperature down to cryogenic temperatures. In this work, austenitic 304L steel produced by two different thermomechanical processes, hot rolling (HR) and cold rolling and annealing (CR/A), were subjected to martensitic transformation by rolling and by tensile tests at 298 K and 155 K and the volume fraction of martensite was determined by X-ray diffraction and ferritescope measurements. The results showed that the martensitic transformation was complete for CR/A samples rolled at 155 K and that the volume fraction of martensite was larger in CR/A samples than in HR samples in all cases.

show abstract

Section: Resultssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanically Induced Martensitic Transformation of Hot Rolled and Annealed 304L Austenitic Stainless Steel at Room and Cryogenic Temperatures

2019

View full text Add to dashboard Cite

show abstract

“…The products of the phase transformation austenite-martensite, in TRIP steel may be ε and α' martensite. The ε-martensite nucleation occurs in the stacking faults intersections and α'-martensite nucleation arises in εmartensite and the intersections among shear bands [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Determination of phases and residual stresses after martensitic transformation induced by rolling in 304L stainless steel

2019

View full text Add to dashboard Cite

The 304L austenitic stainless steel is susceptible to deformation induced martensitic transformation. This phase transformation depends on the temperature as well as on the mode, rate and level of deformation. In this work the phases and residual stresses of a 304L TRIP steel where martensitic transformation was induced by cold rolling were investigated by X-ray diffraction XRD. The analyses were performed for different sample thicknesses. The results showed that the phase composition and the residual stresses are strongly dependent on sample thickness. All samples showed a compressive residual stress.

show abstract

“…Stainless steels can be divided into five main groups: austenitic, ferritic, martensitic, duplex and precipitation hardening [1]. Austenitic stainless steels (ASSs) are widely used and play an inevitable role in many fields of manufacturing, due to their outstanding mechanical and functional properties such as high ductility, high strength, acceptable weldability and extraordinary resistance against corrosion [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Effect of inclusions on mechanical properties of Nb stabilized austenitic stainless steels (316Nb) with centrifugal and sand casting techniques

Türker

Çapan

2017

Matériaux & Techniques

View full text Add to dashboard Cite

In this study, 316Nb stabilized austenitic stainless steel pieces were produced via sand and centrifugal casting method in order to be investigated. Heat treatments were done in two stages, and cooling was made in various quenching mediums. As-cast parts and the parts with only the highest and the lowest tensile strength were investigated. Metallographical analyses were made and the content of non-metallic inclusions was examined. Various types of carbides in microstructures were determined by means of SEM-EDX analysis. The sand casting samples had more non-metallic inclusions than the centrifugal casting ones. After the tensile tests, it was seen that these inclusions had significant effect on the mechanical properties. The tensile strength, the yield strength, the elongation and the hardness values of the centrifugal casting samples were higher than the sand casting ones. Investigating the SEM-EDX analyses, it was determined that the sand cast samples had chromium carbides in small quantities, in addition to niobium carbides. Centrifugal cast parts had niobium carbides.

show abstract

Phase transformation system of austenitic stainless steels obtained by permanent compressive strain

Cited by 20 publications

References 30 publications

Mechanically Induced Martensitic Transformation of Hot Rolled and Annealed 304L Austenitic Stainless Steel at Room and Cryogenic Temperatures

Mechanically Induced Martensitic Transformation of Hot Rolled and Annealed 304L Austenitic Stainless Steel at Room and Cryogenic Temperatures

Determination of phases and residual stresses after martensitic transformation induced by rolling in 304L stainless steel

Effect of inclusions on mechanical properties of Nb stabilized austenitic stainless steels (316Nb) with centrifugal and sand casting techniques

Contact Info

Product

Resources

About