Title of article
Titanium and molybdenum content in supermartensitic stainless steel
Author/Authors
Rodrigues، نويسنده , , C.A.D. and Lorenzo، نويسنده , , P.L.D. and Sokolowski، نويسنده , , A. and Barbosa، نويسنده , , C.A. and Rollo، نويسنده , , J.M.D.A.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
4
From page
149
To page
152
Abstract
The supermartensitic stainless steels (SMSS) must be developed considering a balance between strength and toughness that are achieved by controlling the chemical compositions and heat treatment. In this paper, the results of detailed investigations on 12.50 Cr–5.40 Ni–2.10 Mo–0.13 Ti SMSS composition were obtained after the SMSS was put in a vacuum furnace and subsequently hot rolled and heat-treated. A very fine microstructure of martensite matrix with nanometer size particles of titanium carbonitride (Ti(C, N)-70 nm) was selected after quenching and tempering. Such microstructure reasonably showed an improved mechanical property values: 28 RC hardness, 804 MPa tensile strength, 764 MPa yield strength, 23.7% elongation and 256 J impact energy.
Keywords
Supermartentic stainless steels , Titanium , Transformations of phases , Heat treatment , mechanical properties
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2007
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2154285
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