Creep behaviour of ODS steels

被引：39

作者：

Zakine, C

Prioul, C

Francois, D

机构：

[1] Ecl. Ctrl. des Arts et Manufactures, Laboratoire de Mécanique, F 92295 Chatenay Malabry Cedex, Grande Voie des Vignes

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1996年 / 219卷 / 1-2期

关键词：

DT and DY alloys; oxide dispersion strengthened steels; ferritic alloys; creep properties; transmission electron microscopy;

D O I：

10.1016/S0921-5093(96)10415-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The creep properties of oxide dispersion strengthened (ODS) steels, DT and DY alloys,were investigated in the temperature range 500-700 degrees C. The evaluation of the creep threshold stress was performed by creep dip tests. The Norton's creep law, corrected with this experimental threshold stress, gives a good description of the creep behaviour of DT and DY alloys. Transmission electron microscopy (TEM) observations showed the dislocations to be pinned to the small oxide particles based on thermally activated dislocation detachment from oxide particles. The results are discussed in the light of Arzt's model.

引用

页码：102 / 108

页数：7

共 39 条

[1] MEASUREMENT OF INTERNAL STRESSES DURING CREEP OF AL AND AL-MG ALLOYS [J].

AHLQUIST, CN ;

NIX, WD .

ACTA METALLURGICA, 1971, 19 (04) :373-&

[2]

[Anonymous], RES MECH

[3] THRESHOLD STRESSES FOR DISLOCATION CLIMB OVER HARD PARTICLES - THE EFFECT OF AN ATTRACTIVE INTERACTION [J].

ARZT, E ;

WILKINSON, DS .

ACTA METALLURGICA, 1986, 34 (10) :1893-1898

[4]

ARZT E, 1988, NEW MATERIALS MECHAN, P185

[5]

BENJAMIN JS, 1970, METALL TRANS, V1, P2943

[6]

BENJAMIN JS, 1983, ANN REV MAT SCI, P279

[7]

BENN RC, 1989, NEW MATERIALS BY MECHANICAL ALLOYING TECHNIQUES, P19

[8] THE HIGH-TEMPERATURE DEFORMATION OF MECHANICALLY ALLOYED COPPER-BASED ALLOYS [J].

BISELLI, C ;

MORRIS, DG .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1991, 148 (02) :163-173

[9]

DELBRASSINE A, 1987, ANS ENS INT C RICHL

[10] CREEP AND CREEP FRACTURE OF AN OXIDE-DISPERSION-STRENGTHENED 13-PERCENT CHROMIUM FERRITIC STEEL [J].

EVANS, RW ;

PRESTON, JA ;

WILSHIRE, B ;

LITTLE, EA .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1993, 167 (1-2) :65-72

← 1 2 3 4 →