Universal Plot for Hardness Variation in Pure Metals Processed by High-Pressure Torsion

被引：89

作者：

Edalati, Kaveh ^{[1
]}

Horita, Zenji ^{[1
]}

机构：

[1] Kyushu Univ, Fac Engn, Dept Mat Sci & Engn, Fukuoka 8190395, Japan

来源：

MATERIALS TRANSACTIONS | 2010年 / 51卷 / 05期

关键词：

high-pressure torsion; ultrafine-grained microstructure; severe plastic deformation; hardness; pressure; MECHANICAL-PROPERTIES; MICROSTRUCTURAL EVOLUTION; PLASTIC-DEFORMATION; MICROHARDNESS; HOMOGENEITY;

D O I：

10.2320/matertrans.M2009431

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Various pure metals (Al, Au, Ag, Cu, V, Pt, Ni, Fe, Co, Ti, Zr, Hf, Mo) including Cu-30%Zn are processed by high-pressure torsion. Most of Vickers microhardness (HV) values are expressed by a universal plot when they are normalized as (HV/G)(T/T-m) and plotted against epsilon P/G, where G, T/T-m, epsilon and P are the shear modulus, homologous temperature, equivalent strain and pressure, respectively. Deviations to this plot are for Al (99.99%), Ti, Zr, Hf and Cu-30%Zn and for when P is below a critical pressure. [doi:10.2320/matertrans.M2009431]

引用

页码：1051 / 1054

页数：4

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