Betrachtung über die Unterkühlung von Umwandlungsvorgängen als Grundlage für die Martensitumwandlung

Houdremont, Eduard; Krisement, Otto

doi:10.1002/srin.195301383

Cited by 12 publications

(3 citation statements)

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“…The transformation contributes to the material ductility . In the following decades, the study on the austenite to martensite transformation behaviors in Fe–Ni alloys was conducted in many different aspects, including the thermodynamics, the factors influencing the phase transformation, such as temperature, stress, and strain paths …”

Section: Steels With Trip Effectmentioning

confidence: 99%

The TRIP Effect and Its Application in Cold Formable Sheet Steels

Bleck

Guo

2017

steel research int.

171

100

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The Transformation-Induced-Plasticity (TRIP) effect is used for enhancing the formability of cold formable sheet steels. While the first observation of this phenomenon dates back to the 1930's, the industrial usage of the TRIP steels started after 1950. First fully austenitic steels, later on multiphase steels have been developed with a meta-stable austenitic phase that can transform stress-assisted or strain-induced into eor a 0 -martensite during deformation. The historic development, the principles of the TRIP effect, and the different groups of steels using the TRIP effect are described. For the already commercialized TRIP steels, characteristic chemical compositions and microstructures are discussed; the requirements for the process design as well as new annealing concepts after cold rolling are explained. . Since 2016, he has been working in the Steel Institute of RWTH Aachen University as a scientific researcher. His research topic focuses on the microstructuremechanical properties relationship of high-Mn and medium-Mn steels.

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Section: Steels With Trip Effectmentioning

confidence: 99%

The TRIP Effect and Its Application in Cold Formable Sheet Steels

Bleck

Guo

2017

steel research int.

171

100

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“…Under the second assumption made one may assume the value of the a on the dilatogram section between the first (2), 50 (3), 100 (4), 250 K/min (5) (2), a+ Mx Ny (3) and the second transformation o:,+p as a sum of the austenite linear fraction (X,) and the products of its complete transformation (Xp), multiplied, respectively, by the coefficients of the austenite thermal expansion (a,) and the products of its full transformation (o:p), i.e. : (2) Naturally, in all cases…”

Section: Phase Transformations During Cooling and Heatingmentioning

confidence: 99%

“…As the contents of carbon and chromium are not equal, it is possible to reveal the natural role of nitrogen in situation with temperature Ms only if the influence of chromium and carbon on this temperature is excluded. Variation of temperature Ms with carbon content in steel is well-known [3]. Curve 2 in figure 8 is plotted neglecting any influence of carbon on Ms.…”

Section: Phase Transformations During Cooling and Heatingmentioning

confidence: 99%

On the structure and properties of high-nitrogen low-carbon non-austenitic steels

Bannykh¹,

Blinov

Proscurin

1994

Steel Research

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Phase transformations, when cooling and heating non-austenitic high-nitrogen low-carbon steels containing chromium and other alloying elements, as well as structure and mechanical properties of these steels were analyzed. It was confirmed that these steels have high temperature chromium diffusion controlled pearlitic type transformation and martensitic type transformation. Experimental high nitrogen steels after quenching and tempering provide mechanical properties of about the same level as high strength commercial alloyed steels. Features of nitrogen as an alloying element in steels discussed allow the supposition of a possible reduction of the consumption of nickel, manganese, molybdenum or tungsten in high strength alloyed steels. OberGefl'.ige und Eigenschaften hochstickstoffhaltiger, kohlenstoffarmer nichtaustenitischer Stahle. Die Phasenumwandlungen, die in nichtaustenitischen hochstickstoffhaltigen, kohlenstoffarmen Stahlen wahrend Aufheizen und AbkOhlen ablaufen, werden untersucht. Das GefOge und die mechanischen Eigenschaften dieser Stahle, die auch Chrom und andere Legierungselemente enthalten, wurde analysiert. Es stellte sich heraus, daB in den Stahlen einerseits bei hohen Temperaturen eine perlitische Umwandlung stattfindet, die von der Chromdiffusion kontrolliert wird, und andererseits eine martensitische Umwandlung. Versuchslegierungen wiesen nach einer VergOtungsbehandlung die gleichen mechanischen Eigenschaften wie industrielle hochfeste Stahle auf. Stickstoff als Legierungselement eroffnet !Or die untersuchten Stahle eine Moglichkeit, den Verbrauch an Nickel, Mangan, Molybdan bzw. Wolfram in hochfesten legierten Stahlen zu verringern. steel research 65 (1994) No. 5

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Nature of Certain Features in the Martensite Transformation

Éstrin¹

1966

Solid State Transformations

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Betrachtung über die Unterkühlung von Umwandlungsvorgängen als Grundlage für die Martensitumwandlung

Cited by 12 publications

References 0 publications

The TRIP Effect and Its Application in Cold Formable Sheet Steels

The TRIP Effect and Its Application in Cold Formable Sheet Steels

On the structure and properties of high-nitrogen low-carbon non-austenitic steels

Nature of Certain Features in the Martensite Transformation

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