- Prediction of creep rupture property using MHZ constant for 25Cr35Ni steel
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- 论文类型： 会议论文
- 发表时间： 2011-01-01
- 收录刊物： CPCI-S
- 页面范围： 145-148
- 关键字： MHZ parameter; M-H parameter; L-M parameter; Creep rupture property; HP40
- 摘要： The creep rupture property of 25Cr35Ni (HP40) steel is analyzed by using L-M and M-H parameters. It is found that even though the master curve has a good correlation with the experimental data using L-M parameter (P-LM,(sigma)=T(logt(r)+C), where C=20), the extrapolated curves have an obvious deviation with the experimental data. While for M-H parameter, a set of constant (P-MH(sigma)=(log t(r) - log t(a))/(T-Ta), where T-a-450, log t(a)=15) which is named as MHZ constant is proposed to correlate the creep rupture data. It exhibits a good agreement with the experimental data promulgated by NIMS. The result was also compared with that by using M-H constant (0, 20.465) recommended by NIMS.
