MECHANICAL STABILITY OF RETAINED AUSTENITE IN UNALLOYED STRUCTURAL STEELS OF VARIOUS CARBON CONTENT

被引：15

作者：

Kokosza, A. ^{[1
]}

Pacyna, J. ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Fac Met Engn & Ind Comp Sci, PL-30059 Krakow, Poland

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2010年 / 55卷 / 04期

关键词：

structural steel; retained austenite; stresses; mechanical stability; destabilization; TRANSFORMED STEEL; ALLOY STEELS; MICROSTRUCTURE; TEMPERATURE;

D O I：

10.2478/v10172-010-0002-8

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The results of investigations on the influence of stresses on the retained austenite volume fraction in a microstructure of two unalloyed structural steels are presented in the paper. The mechanical stability of retained austenite was estimated on the bases of these results. The relation between stress values, carbon content, retained austenite volume fraction and its stability was revealed. It was established that the retained austenite mechanical destabilization in both examined steels depended on the applied stresses and occured in two stages. The authors observed that retained austenite present in a microstructure of steel of a smaller carbon content, regardless of its smaller fraction, was characterised by a greater mechanical stability (smaller tendency to a mechanical destabilization) than austenite in steel of a greater carbon content. It was pointed out that it was not possible to perform a complete transformation of retained austenite in the examined steels by their mechanical destabilization.

引用

页码：1001 / 1006

页数：6

共 16 条

[11]

Pacyna J., 2000, MECHANIKA, V72, P347

[12]

Pickering F.B., 1976, International Metal Reviews, P227

[13]

Pickering F.B., 1978, Physical Metallurgy and the Design of Steels

[14] MECHANICAL-PROPERTIES AND RETAINED AUSTENITE IN INTERCRITICALLY HEAT-TREATED BAINITE-TRANSFORMED STEEL AND THEIR VARIATION WITH SI AND MN ADDITIONS [J].

SAKUMA, Y ;

MATSUMURA, O ;

TAKECHI, H .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1991, 22 (02) :489-498

[15] INFLUENCE OF C-CONTENT AND ANNEALING TEMPERATURE ON MICROSTRUCTURE AND MECHANICAL-PROPERTIES OF 400-DEGREES-C TRANSFORMED STEEL CONTAINING RETAINED AUSTENITE [J].

SAKUMA, Y ;

MATSUMURA, O ;

AKISUE, O .

ISIJ INTERNATIONAL, 1991, 31 (11) :1348-1353

[16] Effect of microstructure on the stability of retained austenite in transformation-induced-plasticity steels [J].

Timokhina, IB ;

Hodgson, PD ;

Pereloma, EV .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (08) :2331-2341

← 1 2 →