Relationship between hardness and tensile properties in various single structured steels

Citation
M. Umemoto et al., Relationship between hardness and tensile properties in various single structured steels, MATER SCI T, 17(5), 2001, pp. 505-511
Citations number
11
Categorie Soggetti
Material Science & Engineering
Journal title
MATERIALS SCIENCE AND TECHNOLOGY
ISSN journal
02670836 → ACNP
Volume
17
Issue
5
Year of publication
2001
Pages
505 - 511
Database
ISI
SICI code
0267-0836(200105)17:5<505:RBHATP>2.0.ZU;2-C
Abstract
An attempt has been made to establish a relationship between hardness and t ensile properties for various single structured steels: ferrite, pearlite, bainite, and martensite. It is found that the proportionality constant Ay O f hardness to yield strength changes from 5.79 to 3.17 and is highest for t he ferrite steel and lowest for the tempered martensitic steels. A less pro nounced change was found in the proportionality constant AT Of hardness to tensile strength (from 3.97 to 2.72), A dependence on microstructure of the proportionality constant at 8% strain A(0.08) was found as well. This diff erence in A was found to be attributable mostly to the effect of different work hardening behaviours owing to different microstructures, Regression an alysis shows that hardness can be expressed as a function of accessible mat erial parameters such as composition, grain size, and transformation temper atures for various single structured steels within a certain degree of accu racy. (C) 2001 IoM Communications Ltd.