On dislocation accumulation and work hardening in Hadfield steel

被引：221

作者：

Hutchinson, Bevis

Ridley, Norman

机构：

[1] KIMAB, Corros & Met Res Inst, SE-11428 Stockholm, Sweden

[2] Univ Manchester, Ctr Mat Sci, Manchester M17HS, Lancs, England

来源：

SCRIPTA MATERIALIA | 2006年 / 55卷 / 04期

关键词：

Hadfield steel; work hardening; dislocations; twinning;

D O I：

10.1016/j.scriptamat.2006.05.002

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Density measurements have been made on specimens of Hadfield steel deformed to various strains in tension and compression to determine values of the dislocation density. The rate of dislocation accumulation is considerably higher than for other face-centred cubic metals reported in the literature. However, the high work hardening rate at true strains above about 0.15 is attributed mainly to mechanical twinning, which contributes about twice the effect of that from dislocation accumulation. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：299 / 302

页数：4

共 18 条

[1]

ADLER PH, 1981, METALL T A, V17, P1725

[2]

AFGARI A, 1997, METAL T A, V28, P1781

[3]

BARRACLOUGH DR, 1973, J TEST EVAL, V1, P220, DOI 10.1520/JTE10007J

[4]

CLAREBROUGH LM, 1957, ACTA METALL MATER, V5, P738

[5] DENSITY CHANGES DURING THE ANNEALING OF DEFORMED NICKEL [J].

CLAREBROUGH, LM ;

HARGREAVES, ME ;

WEST, GW .

PHILOSOPHICAL MAGAZINE, 1956, 1 (06) :528-536

[6]

COLLETTE G, 1957, REV METALL, V54, P433

[7] MECHANISM OF WORK-HARDENING IN HADFIELD MANGANESE STEEL [J].

DASTUR, YN ;

LESLIE, WC .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1981, 12 (05) :749-759

[8] Supra-ductile and high-strength manganese-TRIP/TWIP steels for high energy absorption purposes [J].

Frommeyer, G ;

Brüx, U ;

Neumann, P .

ISIJ INTERNATIONAL, 2003, 43 (03) :438-446

[9]

HAGSTROM J, IM2004544 SWED I MET

[10] PRECISION DENSITY MEASUREMENTS ON DEFORMED COPPER AND ALUMINUM SINGLE CRYSTALS [J].

HORDON, MJ ;

AVERBACH, BL .

ACTA METALLURGICA, 1961, 9 (03) :247-249

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