Microstructural evolution and creep-rupture life estimation of high-Cr martensitic heat-resistant steels

2015 ◽  
Vol 106 ◽  
pp. 266-272 ◽  
Author(s):  
Kyu-Ho Lee ◽  
Jin-Yoo Suh ◽  
Sung-Min Hong ◽  
Joo-Youl Huh ◽  
Woo-Sang Jung
Keyword(s):  
Microstructural Evolution ◽  
Rupture Life ◽  
Creep Rupture ◽  
Life Estimation ◽  
Heat Resistant ◽  
Heat Resistant Steels

Application of Manson–Haferd and Larson–Miller Methods in Creep Rupture Property Evaluation of Heat-Resistant Steels

2010 ◽  
Vol 132 (6) ◽  
Author(s):  
Jie Zhao ◽  
Dong-Ming Li ◽  
Yuan-Yuan Fang
Keyword(s):  
Rupture Life ◽  
Creep Rupture ◽  
Obvious Effect ◽  
Heat Resistant ◽  
Property Evaluation ◽  
Wide Range ◽  
Rupture Data ◽  
Heat Resistant Steels ◽  
Correlation Accuracy ◽  
Selection Of

The current paper discusses the selection of Manson–Haferd and Larson–Miller constants on correlation results of creep rupture property in several heat-resistant steels. It indicates that the change in Larson–Miller constant CLM has obvious effect on the predicting result of rupture life and the optimal CLM values will depend on materials and the optimal ranges of the values are narrow. However, for Manson–Haferd constants Ta and log ta, they are at least phenomenally not independent variables but show a linear relationship: log ta=27.015−0.0267Ta. It is shown that the values of Manson–Haferd constants (Ta,log ta) can be selected in a wide range with desirable correlation accuracy and a set of Manson–Haferd constant (Ta=450, log ta=15) is recommended to correlate the creep rupture data.

Creep Rupture Properties of Welded Joints of Heat Resistant Steels

2007 ◽  
pp. 1044-1048 ◽  
Author(s):  
Masayoshi Yamazaki ◽  
Takashi Watanabe ◽  
Hiromichi Hongo ◽  
Masaaki Tabuchi
Keyword(s):  
Welded Joints ◽  
Creep Rupture ◽  
Heat Resistant ◽  
Heat Resistant Steels ◽  
Rupture Properties

An Approach to Predict Creep Strain and Rupture Life of Heat Resistant Steels Based on ZC Parameter

2018 ◽  
Vol 774 ◽  
pp. 559-563
Author(s):  
Jie Zhao ◽  
Tie Shan Cao ◽  
Xin Yue Liu ◽  
Cong Qian Cheng
Keyword(s):  
Experimental Data ◽  
Creep Strain ◽  
Rupture Life ◽  
Current Method ◽  
Experiment Data ◽  
Statistic Method ◽  
Heat Resistant ◽  
Heat Resistant Steels ◽  
Main Curve ◽  
Good Agreement

The current paper proposes a so-called Zc method to evaluate creep strain and rupture life of heat resistant steels by considering the scattering distribution of experimental data, where the Zc value indicates the deviation of the fitted σ-P curves at different creep strains to the main curve. It is shown that the value of Zc increased rapidly at first and then became stable with increasing creep strain, meanwhile, the degree of deviation between experiment data and the corresponding fitted curves came to decrease. The current method provides a statistic method for predicting creep stain and rupture life and get good agreement with experiment result.

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