Improvement of the work hardening rate of ultrafine grained steels through second phase particles

被引：233

作者：

Song, R ^{[1
]}

Ponge, D ^{[1
]}

Raabe, D ^{[1
]}

机构：

[1] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany

来源：

SCRIPTA MATERIALIA | 2005年 / 52卷 / 11期

关键词：

steel; warm deformation; ultrafine grains; ductility; work hardening; cementite;

D O I：

10.1016/j.scriptamat.2005.02.016

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ultrafine grained steels show little room temperature tensile ductility compared with coarse grained samples of the same compositions. In order to increase the ductility, the work hardening rate of various ultrafine grained steels with different carbon contents was studied. The increase in the amount of finely dispersed cementite particles leads to an improved work hardening rate, which is sufficiently large to balance the negative effect of grain refinement on ductility. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1075 / 1080

页数：6

共 19 条

[1] WORK HARDENING OF DISPERSION-HARDENED CRYSTALS [J].

ASHBY, MF .

PHILOSOPHICAL MAGAZINE, 1966, 14 (132) :1157-&

[2] DEFORMATION OF PLASTICALLY NON-HOMOGENEOUS MATERIALS [J].

ASHBY, MF .

PHILOSOPHICAL MAGAZINE, 1970, 21 (170) :399-&

[3] WORK-HARDENING OF COPPER-SILICA .5. EQUILIBRIUM PLASTIC RELAXATION BY SECONDARY DISLOCATIONS [J].

BROWN, LM ;

STOBBS, WM .

PHILOSOPHICAL MAGAZINE, 1976, 34 (03) :351-372

[4] THE HARDENING OF METAL CRYSTALS BY PRECIPITATE PARTICLES [J].

FISHER, JC ;

HART, EW ;

PRY, RH .

ACTA METALLURGICA, 1953, 1 (03) :336-339

[5] Effect of grain size on tensile behaviour of a submicron grained Al-3 wt-%Mg alloy produced by severe deformation [J].

Hayes, JS ;

Keyte, R ;

Prangnell, PB .

MATERIALS SCIENCE AND TECHNOLOGY, 2000, 16 (11-12) :1259-1263

[6] Ultrafine ferrite in low carbon steel [J].

Hodgson, PD ;

Hickson, MR ;

Gibbs, RK .

SCRIPTA MATERIALIA, 1999, 40 (10) :1179-1184

[7] WORK-HARDENING AND RECOVERY OF DISPERSION HARDENED ALLOYS [J].

HUMPHREYS, FJ ;

HIRSCH, PB .

PHILOSOPHICAL MAGAZINE, 1976, 34 (03) :373-390

[8]

Jansson B., 1993, J PHASE EQUILIB, V14, P557, DOI DOI 10.1007/BF02669134

[9]

JNES RH, 1973, METALL T, V4, P2799

[10]

JNES RH, 1974, METALL T, V5, P970

← 1 2 →