Effect of changing strain rate on flow stress during hot deformation of Type 316L stainless steel

被引：41

作者：

Abbod, M. F. ^{[1
]}

Sellars, C. M. ^{[2
,3
]}

Tanaka, A. ^{[4
]}

Linkens, D. A. ^{[2
,5
]}

Mahfouf, M. ^{[2
,5
]}

机构：

[1] Brunel Univ, Sch Engn & Design, Uxbridge UB8 3PH, Middx, England

[2] Univ Sheffield, Inst Microstruct & Mech Proc Engn, Sheffield S10 2TN, S Yorkshire, England

[3] Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England

[4] Nippon Steel Corp Ltd, Chiyoda Ku, Tokyo 1008071, Japan

[5] Univ Sheffield, Dept Automat Control & Syst Engn, Sheffield S1 3JD, S Yorkshire, England

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 491卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

316L stainless steel; plane strain compression tests; strain rate changes; equation of state flow stress; transient flow stress;

D O I：

10.1016/j.msea.2008.02.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In industrial rolling, changes in strain rate and temperature occur with strain during passes, and between one pass and the next. Plane strain compression testing has been used with ramped changes in strain rate during deformation, and with changes in strain rate between double deformations to study their effects on flow stress. No systematic deviations from a mechanical equation of s ate were found for ramped increase or decrease in strain rate, even at the highest experimental ramping rates. In the two deformation tests, static recovery between deformations reduced the initial flow stress below the value for an equation of state by an amount dependent on time. The reduction was increased when strain rate was increased for the second deformation, and the strain interval required to re-establish the equation of state flow stress is uniquely related to the initial reduction in stress. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：290 / 296

页数：7

共 15 条

[1]

[Anonymous], MICROSTRUCTURAL CONT

[2]

BARBOSA RAN, 1992, P INT C RECR REL PHE, P461

[3]

BARBOSA RAN, 1984, THESIS U SHEFFIELD

[4]

BARRACLOUGH DR, 1974, I PHYS C SERIES, V21, P111

[5] The influence of transient deformation conditions on strength, microstructure and recrystallization during thermomechanical processing of an aluminium alloy Al-1% Mg [J].

Baxter, GJ ;

Furu, T ;

Whiteman, JA ;

Sellars, CM .

ALUMINIUM ALLOYS: THEIR PHYSICAL AND MECHANICAL PROPERTIES, PTS 1-3, 1996, 217 :459-464

[6] Temperature changes during hot plane strain compression testing [J].

Hand, RJ ;

Foster, SR ;

Sellars, CM .

MATERIALS SCIENCE AND TECHNOLOGY, 2000, 16 (04) :442-450

[7] FLOW STRESS AND SUBSTRUCTURAL CHANGE DURING TRANSIENT DEFORMATION OF ARMCO IRON AND SILICON STEEL [J].

IMMARIGEON, JP ;

JONAS, JJ .

ACTA METALLURGICA, 1971, 19 (10) :1053-+

[8]

KARLJALAINEN LP, 2000, THERMOMECHANICAL PRO, P130

[9] Measurement of flow stress in hot plane strain compression tests [J].

Loveday, M. S. ;

Mahon, G. J. ;

Roebuck, B. ;

Lacey, A. J. ;

Palmiere, E. J. ;

Sellars, C. M. ;

van der Winden, M. R. .

MATERIALS AT HIGH TEMPERATURES, 2006, 23 (02) :85-118

[10]

MARTHINSEN K, 1999, P 20 RIS INT S MAT S, P405

← 1 2 →