Martensitic transformations induced by plastic deformation in the Fe-Ni-Cr-C system

Lecroisey, Francis; Pineau, A.

doi:10.1007/bf02642042

Cited by 383 publications

(158 citation statements)

References 23 publications

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“…[34][35][36][37][38][39] As demon-279 strated by the data in Figure 7, the higher the percentage 280 of martensite, the higher the values of yield stress, 281 ultimate strength, and hardness. It is important to point 282 out that even for low amounts of pre-existing marten-283 site, a relevant yield stress increase was observed.…”

mentioning

confidence: 99%

Correlation Between Microstructure and Mechanical Properties Before and After Reversion of Metastable Austenitic Stainless Steels

Fargas

Zapata

Roa

et al. 2015

Metall Mater Trans A

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mentioning

confidence: 99%

Correlation Between Microstructure and Mechanical Properties Before and After Reversion of Metastable Austenitic Stainless Steels

Fargas

Zapata

Roa

et al. 2015

Metall Mater Trans A

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“…Austenite forms the main part of the microstructure with neither bainite nor martensite fractions. The possible deformation modes, which are dislocation slip, twinning and the phase transformation, constituting the TRIP-effect, are mainly influenced by the stacking fault energy (SFE) of the austenite [2]. The SFE is reduced by the addition of 6 wt.% manganese.…”

Section: Introductionmentioning

confidence: 99%

“…SF suitable threshold for steel to deform by formation of -martensite as hcp phase or above this critical value as well by twinning. Due to the fact that the SFE is a function of temperature [2,3], deformation modes change with deformation temperature. At high temperatures twinning is observed, followed by a transition mode, where twinning as well as the formation of -martensite is expected.…”

Section: Introductionmentioning

confidence: 99%

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Investigations on martensite formation in CrMnNi-TRIP steels

Martin

Wolf

Ullrich

et al. 2009

ESOMAT 2009 - 8th European Symposium on Martensitic Transformations

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Abstract.A new generation of high alloyed cast CrMnNi-TRIP-steels was developed exhibiting high strength (UTS) as well as high uniform elongation for a maximum of energy-absorption. The nature of the high elongation is the formation of -martensite in the most deformed areas of the metastable austenitic steel, so that necking is delayed. Because of the low stacking fault energy, due to the high alloying concept, deformation is mainly accompanied by the development of deformation bands in coarse austenitic grains and further the -martensite. Within this study, stress-strain curves will be evaluated by the corresponding microstructure information obtained by LOM, SEM and EBSD examinations. The formation of -martensite is discussed for tensile and compressive loading at room temperature. The arrangement of martensite within the microstructure and the local deformation dependency of the -martensite fraction is considered. Martensite kinetics will be presented for interrupted deformation tests, determined via magnetic balance (MS), EBSD and light optical metallography (LOM).

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“…It is well known that austenitic stainless steels may undergo phase transformation from austenite to martensite when subjected to mechanical or thermal loading [1][2][3]. The present paper is concerned with an anisotropic stainless steel 301LN alloy which features strain-induced nucleation at temperatures between -60 o C and 83 o C [4].…”

Section: Introductionmentioning

confidence: 99%

Isotropic Phase Transformation in Anisotropic Stainless Steel 301LN Sheets

Beese

Mohr

Santacreu

2009

ESOMAT 2009 - 8th European Symposium on Martensitic Transformations

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Abstract. The phase transformation due to mechanical loading in cold-rolled stainless steel 301LN sheets is investigated experimentally. A series of uniaxial tension experiments is performed to quantitatively investigate the effect of initial anisotropy on the martensitic transformation kinetics. Three methods are employed to measure the martensite content: (1) micrography, (2) global magnetic saturation, and (3) local magnetic induction. The first two methods require interrupted tests, while the third method allows for the in-situ detection of the evolution of the martensite volume ratio. All three methods are able to detect the increasing martensite content with plastic strain, and in addition they show that the rate of austenite-to-martensite transformation is not loading direction dependent. In particular, the local magnetic induction technique appears to be sufficiently sensitive to detect these relative differences. The results show that micrography has limited accuracy in quantifying the absolute martensite content due to material preparation. However, the global magnetic method is deemed to be an accurate method to quantify the absolute martensite content, and measurements using this method can be used to calibrate the local magnetic induction method for in-situ monitoring of martensite content evolution. In addition, it was determined that the martensite evolution in this textured material has no directional dependence.

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Martensitic transformations induced by plastic deformation in the Fe-Ni-Cr-C system

Cited by 383 publications

References 23 publications

Correlation Between Microstructure and Mechanical Properties Before and After Reversion of Metastable Austenitic Stainless Steels

Correlation Between Microstructure and Mechanical Properties Before and After Reversion of Metastable Austenitic Stainless Steels

Investigations on martensite formation in CrMnNi-TRIP steels

Isotropic Phase Transformation in Anisotropic Stainless Steel 301LN Sheets

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