Stress Relaxation Testing For Analysis of 12Cr1MoVG Steel for Creep Strength Evaluation

Wei Ming Sun; Bing Bing Chen; Wei Ya Jin; Zeng Liang Gao

doi:10.4028/www.scientific.net/KEM.353-358.408

Paper Titles

Strength and Toughness of 1.1wt% Li-Containing Al-Zn-Mg-Cu Alloys
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Experimental Studies of Non-Equilibrium Grain-Boundary Segregations of Phosphorus under Low Tensile Stresses
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Influence of Residual Stresses on the Interfacial Toughness Measurement by Cross-Sectional Nanoindentation
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Micorstructure and Properties of 2Cr16Ni2MoN Stainless Steel
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Stress Relaxation Testing For Analysis of 12Cr1MoVG Steel for Creep Strength Evaluation
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Compressive Deformation Behavior of the Ferritic Oxide Dispersion Strengthened Alloys at Elevated Temperatures
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Evaluation of Critical Fracture Stress in Low Alloy Steels by Finite Element Analysis of Small Punch Test
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Empirical Correlation between Parameters from Small Punch and Tensile Curves of Mn-Mo-Ni Low Alloy Steels by Using Test and FE Analysis
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Structural Strength and Buckling Analysis for a Steel Derrick after its Members Removed Partly
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Stress Relaxation Testing For Analysis of 12Cr1MoVG Steel for Creep Strength Evaluation

Abstract:

The design of pressurized components at elevated temperature is limited by available mechanical properties that often do not span appropriate range of stress, time, strain and temperature. To improve the design process, a new approach based on short-time stress relaxation test (SRT) is introduced in steel tensile creep analysis. The experiments are implemented using SRT and tested for creep properties of 12Cr1MoVG steel at 560 °C. The results of creep curves agree well with the traditional constant load creep test data. The possibility to apply SRT approach is shown promising in the design of the pressurized component at elevated temperature.