Stress rupture characteristics of Inconel 718 alloy for ramjet combustor

被引：43

作者：

Kim, Duck-Hoi ^{[2
]}

Kim, Jae-Hoon ^{[1
]}

Sa, Jeong-Woo ^{[2
]}

Lee, Young-Shin ^{[1
]}

Park, Chul-Kyu ^{[1
]}

Moon, Soon-Il ^{[3
]}

机构：

[1] Chungnam Natl Univ, Dept Mech Design Engn, Taejon 305764, South Korea

[2] Natl Fus Res Ctr, Taejon 305333, South Korea

[3] Agcy Def Dev, Taejon 305600, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 483-84卷 / 1-2 C期

关键词：

accelerated creep; stress rupture; Inconel; 718; alloy; creep life; stress exponent; activation energy;

D O I：

10.1016/j.msea.2006.12.159

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To evaluate the accelerated creep phenomena for ramjet combustor, the stress rupture tests for Inconel 718 alloy were performed at a temperature range of 649-760 degrees C and a stress range of 381-1093 MPa. The stress exponent, n, under the given conditions was obtained. Also, the activation energy, Delta H, was calculated from the experimental results. An empirical formula of accelerated creep rate for Inconel 718 alloy was calculated by computer simulation. The accelerated creep life of Inconel 718 alloy was evaluated by using Larson-Miller parameter. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：262 / 265

页数：4

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