[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5574/KSOE.2011.25.4.012

Creep Behavior of 9% Ni Alloy Steel at Elevated Temperatures

Suh, Chang-Min (School of Mechanical Engineering, Kyungpook National University)
Oh, Sang-Yeob (School of Automotive Engineering, Kyungpook National University)

Publication Information

Journal of Ocean Engineering and Technology / v.25, no.4, 2011 , pp. 12-17 More about this Journal

Abstract

Little design data is available for the creep life prediction of 9% Ni alloy in elevated temperatures. Therefore, in this study, a series of creep tests under 16 combined conditions with 4 kinds of stresses and 4 temperatures was performed to obtain creep design and life prediction data for 9% Ni alloy, with the following results. The stress exponents decreased as the test temperature increased. The creep activation energy gradually decreased as the stresses became larger. The Larson-Miller parameter (LMP) constant for this alloy was estimated to be about 2.

Keywords

Creep; Elevated temperature; Larson-Miller parameter; Life prediction; Activation energy;

Citations & Related Records

Reference

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