Austenite Reverse Transformation in a Q&P Route of Mn and Ni Added Steels

被引：19

作者：

Arribas, Maribel ^{[1
]}

Gutierrez, Teresa ^{[1
]}

Del Molino, Eider ^{[1
,2
]}

Arlazarov, Artem ^{[3
]}

De Diego-Calderon, Irene ^{[3
]}

Martin, David ^{[4
]}

De Caro, Daniele ^{[5
]}

Ayenampudi, Sudhindra ^{[6
]}

Santofimia, Maria J. ^{[6
]}

机构：

[1] Tecnalia, Basque Res & Technol Alliance BRTA, Parque Cient & Tecnol Bizkaia,Astondo Bidea 700, E-48160 Derio, Spain

[2] Univ Basque Country, Dept Min Met & Mat Sci, Plaza Torres Quevedo 1, Bilbao 48013, Spain

[3] ArcelorMittal Maizieres Res SA, Voie Romaine BP30320, F-57283 Maizieres Les Metz, France

[4] Swerim AB, Box 7047, SE-16407 Kista, Sweden

[5] Ctr Ric Fiat, Corso Settembrini 40,Porta 8,Corpo 1, I-10135 Turin, Italy

[6] Delft Univ Technol, Dept Mat Sci & Engn, Mekelweg 2, NL-2628 CD Delft, Netherlands

来源：

METALS | 2020年 / 10卷 / 07期

关键词：

quenching and partitioning; austenite reverse transformation; Mn and Ni influence; austenite stabilization; MECHANICAL-BEHAVIOR; CARBON; MARTENSITE;

D O I：

10.3390/met10070862

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, four low carbon steels with different contents of Mn and Ni were heat treated by quenching and partitioning (Q&P) cycles where high partitioning temperatures, in the range of 550 degrees C-650 degrees C, were applied. In order to elucidate the effect of applying these high partitioning temperatures with respect to more common Q&P cycles, the materials were also heat treated considering a partitioning temperature of 400 degrees C. The microstructure evolution during the Q&P cycles was studied by means of dilatometry tests. The microstructural characterization of the treated materials revealed that austenite retention strongly depended on the alloy content and partitioning conditions. It was shown that the occurrence of austenite reverse transformation (ART) in the partitioning stage in some of the alloys and conditions was a very effective mechanism to increase the austenite content in the final microstructure. However, the enhancement of tensile properties achieved by the application of high partitioning temperature cycles was not significant.

引用

页码：1 / 17

页数：16

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