Influence of additional elements (Mo, Nb, Ta and B) on the mechanical properties of high-manganese dual-phase steels

The influence of a small amount of alloying elements such as Mo, Nb, Ta and boron to the 3 wt.% Mn ferritic dual-phase steels was examined. These elements give a microstructure in which the fine martensite phase is well dispersed in the ferrite matrix, which leads to a remarkable reinforcement effec...

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Bibliographic Details
Published in:Journal of materials science 1988-05, Vol.23 (5), p.1769-1778
Main Authors: TERAO, N, CAUWE, B
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Elasticity. Plasticity
Exact sciences and technology
Materials science
Mechanical and acoustical properties of condensed matter
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals, semimetals and alloys
Metals. Metallurgy
Physics
Specific materials
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Summary:The influence of a small amount of alloying elements such as Mo, Nb, Ta and boron to the 3 wt.% Mn ferritic dual-phase steels was examined. These elements give a microstructure in which the fine martensite phase is well dispersed in the ferrite matrix, which leads to a remarkable reinforcement effect on mechanical properties. It is possible to obtain a tensile strength, sigma sub R , approaching 700 MPa with a fracture elongation, A sub R , of > 40%, or sigma sub R approx 1000 MPa with A sub R = plus/minus 20% with relatively simple heat treatment. 14 ref.--AA
ISSN:0022-2461
1573-4803
DOI:10.1007/bf01115721