Effect of Temperature on Mechanical Properties of 9%Cr Ferritic Steel

被引：13

作者：

Penalba, Felix ^{[1
]}

Gomez-Mitxelena, Xabier ^{[1
]}

Jimenez, Jose Antonio ^{[2
]}

Carsi, Manuel ^{[2
]}

Ruano, Oscar Antonio ^{[2
]}

机构：

[1] Fdn TECNALIA, Mikeletegi Pasealekua 2, San Sebastian 20009, Spain

[2] CENIM CSIC, Av Gregorio del Amo 8, Madrid 28040, Spain

来源：

ISIJ INTERNATIONAL | 2016年 / 56卷 / 09期

关键词：

mechanical properties; creep behavior; P92; steel; low temperature properties; toughness; tensile tests; HEAT-RESISTANT STEELS; MARTENSITIC STEEL; POWER-PLANTS; ALLOY DESIGN; 650-DEGREES-C; BEHAVIOR; EMBRITTLEMENT; STABILITY; DUCTILITY; P92;

D O I：

10.2355/isijinternational.ISIJINT-2016-097

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Mechanical properties of a 9%Cr-ferritic steel grade P92 experimental alloy are studied. The effect of cooling rate on the hardenability was determined by means of continuous cooling diagrams and data provided by hardness measurements and microstructure observations. A fully martensitic microstructure after the solubilization treatment over a wide range of cooling rates was revealed. As this grade of steels is mostly supplied in tempered condition, tensile tests to determine the variation of the strength and ductility at temperatures ranging from 20 to 650 degrees C were carried out after a treatment of 3 h at 760 degrees C. In addition, Charpy V-notch tests were conducted to characterize the impact toughness of the steel and the ductile-brittle transition temperature. Finally, the creep strength was determined from creep tests in the range 550 to 650 degrees C.

引用

页码：1662 / 1667

页数：6

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