INVESTIGATION OF HEAT TREATMENT PARAMETERS EFFECT ON THE MICROSTRUCTURE AND ON THE MECHANICAL PROPERTIES OF A POWDER METALLURGY NICKEL-BASE SUPERALLOY

被引：0

作者：

Dumont, Alice ^{[1
,2
]}

Naze, Loic ^{[1
]}

Koester, Alain ^{[1
]}

Remy, Luc ^{[1
]}

Guedou, Jean-Yves ^{[2
]}

Franchet, Jean-Michel ^{[3
]}

机构：

[1] Ctr Mat, Evry, France

[2] SAFRAN Snecma Villaroche, Moissy Cramayel, France

[3] SAFRAN Snecma Site Gennevilliers, Colombes, France

来源：

21ST INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS (METAL 2012) | 2012年

关键词：

Superalloy; heat treatment; microstructure; mechanical properties; fatigue crack growth; CREEP;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The relationships between heat treatment parameters and microstructure, and between microstructure and mechanical properties were investigated in the SMO43 disc P/M superalloy. Various heat treatments were applied to this superalloy to determine the effect of the solution temperature on the grain size, and of the cooling path and aging temperature on the gamma' precipitates distribution. Microstructural features were characterised through the careful study of gamma' precipitation. Fatigue crack growth tests with dwell time were performed at high temperature for comparison of the mechanical properties of some selected microstructures.

引用

页码：1273 / 1279

页数：7

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