A Time-Temperature Relationship for Rupture and Creep Stresses

Abstract

A relation which evaluates the relative effects of time and temperature on the tempering of steels has been developed by previous investigators. In this paper this relation has been adapted to rupture and creep behavior and applied to existing data on several widely different alloys with outstanding results. Methods are described by which short-time tests can be used to determine long-time properties.

Evaluation of Creep Life Prediction Models for Low Alloy Creep Resistance Steel Grade 22 (2.25Cr-1Mo) using Short-term Creep Test

“…Manson-Haferd expresses relation between time and temperature in his model [9] as below P MH =(logt−logt a )/(T−T a ) (5) HereP MH is Manson-Haferd Parameter, t a is time constant and T a is temperature constant. The variable t represents time.…”

Techno-economic evaluation and optimization of CCGT power Plant: A multi-criteria decision support system

“…The time to failure, 𝑡 𝑓 , is defined by Eq. ( 1) based on one of the most common time-temperature parameters, the Larson-Miller parameter (𝐿𝑀𝑃) which is used to estimate the creep life [49]. The specific value of 𝐿𝑀𝑃 is decided by reference to a master curve [50] when stress is known.…”

Application of the TRANSURANUS code for the fuel pin design process of the ALFRED reactor

“…An evaluation of the time to rupture is usually made through the LMP, defined according to the following equation (Larson and Miller, 1952):…”