PLE/NPLE transition temperature of gamma rarr alpha transformation in Fe-C-X alloy steel under hot deformation condition | |
Liu Zhiyuan ; Yang Zhigang ; Li Zhaodong ; Zhang Chi ; Sheng Guang | |
2010-10-12 ; 2010-10-12 | |
关键词 | Theoretical or Mathematical Experimental/ alloy steel isothermal transformations plastic deformation solid-state phase transformations thermodynamics/ PLE model partition local equilibrium model NPLE model negligible partition local equilibrium model plastic deformed system isothermal gamma - alpha transformation alloy steel thermodynamic equation orthoequilibrium model hot deformation temperature 820 C FeMnSiCrCJk/ A6470K Solid-solid transitions A6220F Deformation and plasticity A8140L Deformation, plasticity and creep/ temperature 1.09315E+03 K/ Cr/ss Fe/ss Mn/ss Si/ss C/ss |
中文摘要 | The PLE (partition local equilibrium) /NPLE (negligible partition local equilibrium) model was introduced into the deformed system to describe the gamma rarr alpha transformation in Fe-C-X alloy steel (X represents for one or several substitutional elements such as Mn, Si, Cr, etc.). On the basis of the calculation method in static system reported, a thermodynamic equation which suits for the plastic deformed system was established under the orthoequilibrium model and used to calculate the PLE/NPLE critical temperature. Isothermal gamma rarr alpha transformation experiments were conducted to a Fe-C0.073-Mn2.17-Si0.80-Cr0.88 (mass fraction, %) steel under different temperatures after hot deformation at 820 degrees C and the critical temperature of PLE/NPLE was roughly measured. The experimental results correspond well with the calculated ones. For the tested steel after a 40% nominal deformation at 820 degrees C and deformed rate of 0.5 s/sup -1/, the critical temperature of PLE/NPLE in isothermal gamma rarr alpha transformation was raised nearly 10 degrees C. |
语种 | 中文 |
出版者 | Science Press ; China |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/78536] ![]() |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Liu Zhiyuan,Yang Zhigang,Li Zhaodong,et al. PLE/NPLE transition temperature of gamma rarr alpha transformation in Fe-C-X alloy steel under hot deformation condition[J],2010, 2010. |
APA | Liu Zhiyuan,Yang Zhigang,Li Zhaodong,Zhang Chi,&Sheng Guang.(2010).PLE/NPLE transition temperature of gamma rarr alpha transformation in Fe-C-X alloy steel under hot deformation condition.. |
MLA | Liu Zhiyuan,et al."PLE/NPLE transition temperature of gamma rarr alpha transformation in Fe-C-X alloy steel under hot deformation condition".(2010). |
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