Anisotropy of compression creep strength in a nickel-base single crystal superalloy

被引：0

作者：

Sha, YH ^{[1
]}

Zuo, LA

Zhang, JH

Xu, YB

Hu, ZQ

机构：

[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China

[2] Chinese Acad Sci, State Key Lab Fatigue & Fracture Mat, Shenyang 110016, Peoples R China

来源：

ACTA METALLURGICA SINICA | 2001年 / 37卷 / 11期

关键词：

nickel-base single crystal superalloy; compression creep strength; anisotropy; threshold stress;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The anisotropy of compression creep strength in a nickel-base single crystal superalloy was investigated. The results showed that the anisotropy of compression creep strength depends on temperature, which decreases in the following order: 1023 K-[110], [111], [001]; 1123 K-[110], [001], [111], while the anisotropy between [001] and [110] weakens as creep rate is lower than 8x10(-5) s(-1); 1223 K-[110], [001], [111], but the anisotropy between [001] and [110] becomes very weak. Through the analysis of creep threshold stress, the controlling creep mechanisms were determined, and by which the anisotropy of compression creep strength was explained.

引用

页码：1142 / 1146

页数：5

共 18 条

[1] EFFECT OF ORIENTATION ON THE INTERMEDIATE TEMPERATURE CREEP-BEHAVIOR OF NI-BASE SINGLE-CRYSTAL SUPERALLOYS [J].

CARON, P ;

KHAN, T ;

NAKAGAWA, YG .

SCRIPTA METALLURGICA, 1986, 20 (04) :499-502

[2]

Caron P., 1988, Superalloys 1988, P215

[3] APPARENT AND EFFECTIVE CREEP PARAMETERS IN SINGLE-CRYSTALS OF A NICKEL-BASE SUPERALLOY .1. INCUBATION PERIOD [J].

CARRY, C ;

STRUDEL, JL .

ACTA METALLURGICA, 1977, 25 (07) :767-777

[4] COMPRESSION CREEP OF (110)-ORIENTED SINGLE-CRYSTALS OF NICKEL-BASE SUPERALLOY CMSX-2 [J].

COURBON, J ;

IGNAT, M ;

LOUCHET, F .

ACTA METALLURGICA ET MATERIALIA, 1990, 38 (04) :663-670

[5]

DOLLAR M, 1988, SUPERALLOYS 1988, P275

[6]

FELLERKNIEPMEIER M, 1989, Z METALLKD, V80, P152

[7] Temperature dependence of deformation mechanisms in a single crystal nickel-base alloy with high volume fraction of gamma' phase [J].

FellerKniepmeier, M ;

Link, T ;

Poschmann, I ;

ScheunemannFrerker, G ;

Schulze, C .

ACTA MATERIALIA, 1996, 44 (06) :2397-2407

[8]

KEAR BH, 1967, T METALL SOC AIME, V239, P1209

[9]

Lagneborg R., 1976, Metal Science, V10, P20, DOI 10.1179/030634576790431462

[10] THE INFLUENCE OF ORIENTATION ON THE STRESS RUPTURE PROPERTIES OF NICKEL-BASE SUPER-ALLOY SINGLE-CRYSTALS [J].

MACKAY, RA ;

MAIER, RD .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1982, 13 (10) :1747-1754

← 1 2 →