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10 items by relevance
1 PhD Thesis

Isothermal Martensite Formation

Villa, Matteo

DTU Mechanical Engineering — 2014

Isothermal (i.e. time dependent) martensite formation in steel was first observed in the 40ies of the XXth century and is still treated as an anomaly in the description of martensite formation which is considered as a-thermal (i.e. independent of time). Recently, the clarification of the mechanism

Year: 2014

Language: English

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2 Journal article

On the Role of Isothermal Martensite Formation during Cryogenic Treatment of Steels : Zur Rolle der isothermen Martensitbildung bei der Tieftemperaturbehandlung von Stählen

Villa, M.; Somers, M. A. J.

H T M — 2020, Volume 75, Issue 5, pp. 263-286

This contribution addresses the effect of sub-zero Celsius treatments at cryogenic temperatures on the steel microstructure. It is shown that the formation of martensite, including the so-called isothermal, i. e. time dependent or thermally activated, martensitic product, can provide an explanation

Year: 2020

Language: English

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3 Journal article

On the Role of Isothermal Martensite Formation during Cryogenic Treatment of Steels : Zur Rolle der isothermen Martensitbildung bei der Tieftemperaturbehandlung von Stählen

Villa, Matteo; Somers, Marcel A. J.

Htm Journal of Heat Treatment and Materials — 2020, Volume 75, Issue 5, pp. 49-72

Year: 2020

Language: English

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4 Journal article

Cryogenic treatment of an AISI D2 steel: The role of isothermal martensite formation and “martensite conditioning”

Villa, Matteo; Somers, Marcel A.J.

Cryogenics — 2020, Volume 110, pp. 103131

room temperature (RT) to −193 °C and, more surprising, during re-heating from −193 °C to RT, indicating the formation of, so called, isothermal or thermally activated martensite. The thermally activated conversion of austenite into martensite occurred in the temperature range −33 °C ≤ T ≤ −173 °C

Year: 2020

Language: English

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