Creep Life Prediction of Cr25Ni35Nb Steel for Furnace Tube Based on Modified θ Projection Method

GENG Lu-yang; LIU Jian-jie; GONG Jian-ming; JIANG Yong; KEE Bong-yoon; SHEN Li-min

Materials and Mechanical Engineering > 2011 > 35(12): 93-96.

GENG Lu-yang, LIU Jian-jie, GONG Jian-ming, JIANG Yong, KEE Bong-yoon, SHEN Li-min. Creep Life Prediction of Cr25Ni35Nb Steel for Furnace Tube Based on Modified θ Projection Method[J]. Materials and Mechanical Engineering, 2011, 35(12): 93-96.

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Creep Life Prediction of Cr25Ni35Nb Steel for Furnace Tube Based on Modified θ Projection Method

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Received Date: October 10, 2011

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The creep tests on Cr25Ni35Nb steel for furnace tube were carried out under different temperatures and stresses. The creep curves of the Cr25Ni35Nb steel were fitted by the modified θ projection concept method. A mathematical expression of the parameter θi in creep equation was obtained. The creep equation of Cr25Ni35Nb steel under arbitrary temperature and stress condition could be established. By the established creep equation, the creep life of the steel was predicted. The results of prediction agreed with the actual life well.
- modified θ projection concept,
- Cr25Ni35Nb steel,
- creep,
- life prediction

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Creep Life Prediction of Cr25Ni35Nb Steel for Furnace Tube Based on Modified θ Projection Method

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