Nitrogen-induced nanotwinning of bainitic ferrite in low-alloy steel

被引：7

作者：

Van Landeghem, H. P. ^{[1
,2
,3
]}

Veron, M. ^{[3
]}

Catteau, S. D. ^{[1
,2
,4
,5
]}

Teixeira, J. ^{[1
,2
]}

Dulcy, J. ^{[1
,2
]}

Redjaimia, A. ^{[1
,2
]}

Denis, S. ^{[1
,2
]}

机构：

[1] Univ Lorraine, LabEx DAMAS, Lab Excellence DAMAS Design Alliages Metall Alleg, F-57045 Metz 01, France

[2] Univ Lorraine, Inst Jean Lamour, CNRS, UMR 7198, Campus ARTEM,2 Allee Andre Guinier, F-54840 Nancy, France

[3] Univ Grenoble Alpes, CNRS, Grenoble INP, SIMAP, F-38000 Grenoble, France

[4] PSA Peugeot Citroen, Ctr Tech Belchamp, F-25420 Voujeaucourt, France

[5] ASCOMETAL, Ave France, F-57300 Hagondange, France

来源：

SCRIPTA MATERIALIA | 2018年 / 155卷

关键词：

Twinning; Steels; Phase transformations; Transmission Electron Microscopy (TEM); Carbonitriding; ISOTHERMAL TRANSFORMATION; IRON-ALLOYS; ALPHA-IRON; DEFORMATION; AUSTENITE; CARBON; DECOMPOSITION; MICROSTRUCTURE; MORPHOLOGY; KINETICS;

D O I：

10.1016/j.scriptamat.2018.06.021

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The isothermal decomposition of austenite between B-s and M-s was investigated after carburizing and carbonitriding in low-alloy steel 23MnCrMo5. The microstructure of the products differed significantly between carburizing and carbonitriding. The carburized alloy produced an expected bainitic microstructure consisting mainly of bainitic ferrite with some cementite and retained austenite. In contrast, the microstructure of the nitrogen-containing sample showed finer, entangled ferrite plates, retained austenite and nitrides. The ferrite plates contain numerous transformation twins, which can be as thin as only a few nanometers. This original result proves that abundant twinning can be found in bainite as well as in martensite. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：63 / 67

页数：5

共 34 条

[1] Modeling of mechanical twinning in a high manganese content austenitic steel [J].

Allain, S ;

Chateau, JP ;

Dahmoun, D ;

Bouaziz, O .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 387 :272-276

[2] Correlations between the calculated stacking fault energy and the plasticity mechanisms in Fe-Mn-C alloys [J].

Allain, S ;

Chateau, JP ;

Bouaziz, O ;

Migot, S ;

Guelton, N .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 387 :158-162

[3] TWINS IN IRON-ALLOYS CONTAINING VANADIUM [J].

BAKER, TN .

ACTA METALLURGICA, 1973, 21 (03) :261-266

[4] EFFECT OF NITROGEN ON PRECIPITATION AND TRANSFORMATION KINETICS IN VANADIUM STEELS [J].

BALLIGER, NK ;

HONEYCOMBE, RWK .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1980, 11 (03) :421-429

[5] BAINITE TRANSFORMATION IN A SILICON STEEL [J].

BHADESHIA, HKDH ;

EDMONDS, DV .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1979, 10 (07) :895-907

[6] THE DEFORMATION AND FRACTURE OF ALPHA-IRON AT LOW TEMPERATURES [J].

BIGGS, WD ;

PRATT, PL .

ACTA METALLURGICA, 1958, 6 (11) :694-703

[7] Carbon and nitrogen effects on microstructure and kinetics associated with bainitic transformation in a low-alloyed steel [J].

Catteau, S. D. ;

Van Landeghem, H. P. ;

Teixeira, J. ;

Dulcy, J. ;

Dehmas, M. ;

Denis, S. ;

Redjaimia, A. ;

Courteaux, M. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 658 :832-838

[8]

Catteau S.D., 2014, P 21 IFHTSE C MUN GE, P153

[9]

CHANG LC, 1995, MATER SCI TECH SER, V11, P105, DOI 10.1179/026708395790164689

[10] DEFORMATION TWINNING [J].

CHRISTIAN, JW ;

MAHAJAN, S .

PROGRESS IN MATERIALS SCIENCE, 1995, 39 (1-2) :1-157

← 1 2 3 4 →