Dynamic steady-state tertiary creep in a Nickel-base single crystal superalloy at high temperatures

被引：2

作者：

Sinha, NK ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Aerosp Res, Ottawa, ON K1A 0R6, Canada

来源：

JOURNAL OF MATERIALS SCIENCE | 2006年 / 41卷 / 06期

关键词：

Superalloys;

D O I：

10.1007/s10853-005-2328-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The presence of dynamic steady-state tertiary creep at a high temperature in a nickel-base single crystal superalloy, was analyzed. Six constant load tests, for an initial stress of 700 MPa, were performed in air at 1073 to 1273 K ∓ 1K using a single lever dead-load system, a three-zone furnace and an extensometer. Out of these six tests, two rupture tests were performed first at 1123 K and 1173 K to determine the fracture times and strains. The results show that there is an increase in the 'incubation time' during early primary creep with the decrease in temperature.

引用

页码：1855 / 1858

页数：4

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