Extrapolation Model of High Temperature Creep for 12Cr1MoV Steel

Chen Guoliang; Guo Hong; Sun Jiyue; Shu Guogang; Li Yimin

doi:10.13374/j.issn1001-053x.1997.02.008

Volume 19 Issue 2

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Chen Guoliang, Guo Hong, Sun Jiyue, Shu Guogang, Li Yimin. Extrapolation Model of High Temperature Creep for 12Cr1MoV Steel[J]. Chinese Journal of Engineering, 1997, 19(2): 157-160. doi: 10.13374/j.issn1001-053x.1997.02.008

Citation:

Chen Guoliang, Guo Hong, Sun Jiyue, Shu Guogang, Li Yimin. Extrapolation Model of High Temperature Creep for 12Cr1MoV Steel[J]. Chinese Journal of Engineering, 1997, 19(2): 157-160. doi: 10.13374/j.issn1001-053x.1997.02.008

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Extrapolation Model of High Temperature Creep for 12Cr1MoV Steel

doi: 10.13374/j.issn1001-053x.1997.02.008

1. State Key Laboratory for Advanced Metals and Materials, UST Beijing, Beijing 100083, China;
2. Thermal Power Research Institute, Xian 710032, China

Received Date: 1997-01-10
Available Online: 2021-08-27

Abstract

Abstract

The creep curves of heat resistant steel 12Cr1MoV was inveshgated. By constant stress creep tests. The creep curves of consent stress creep are quite different from that of constant load creep. The original θ-Concept Project procedure can be validared to successfully describe the constant stress creep curves but not constant load creep. A modified θ procedure was developed. This approach can successfully described both constant stress creep and constant load creep curves. The new approach leads to a great improvement in accuracy of long term prediction of extrapolation due to validation of a great number of existing constant load creep data.
- heat resistant steel