High temperature workability behaviour of a modified P92 steel

被引：12

作者：

Carsi, Manuel

Penalba, Felix ^{[2
]}

Rieiro, Ignacio ^{[3
]}

Ruano, Oscar A. ^{[1
]}

机构：

[1] CSIC, CENIM, Ctr Nacl Invest Met, Dept Met Phys, Madrid 28040, Spain

[2] TECNALIA, San Sebastian, Spain

[3] Univ Castilla La Mancha, Dipartimento Matemat, Toledo, Spain

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2011年 / 102卷 / 11期

关键词：

P92; steel; Forming; Garofalo equation; Efficiency maps; Stability maps; GAROFALO EQUATION;

D O I：

10.3139/146.110603

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The high temperature forming behaviour of a modified P92, type 9% Cr, steel is studied by means of torsion tests. The data obtained from these tests allowed correlation of the number of turns to failure, a measure of ductility, as a function of strain rate and temperature. In addition, the data were correlated by the Garofalo equation with a stress exponent of 4.78 and an activation energy of 390 kJ mol(-1). This equation was used to predict the formability behaviour for the rolling process and also to determine the maximum forming efficiency and stability of the steel. A temperature of 1140 degrees C is found to give the optimum forming temperature.

引用

页码：1378 / 1383

页数：6

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