With the sublattice model, equilibrium compositions of ferrite (α) and austenite (γ) phases, as well as the volume percent of austenite (γ) at 780℃ in different TRIP steels were calculated. Concentration profiles of carbon, Mn, Al and Si in the steels were also estimated under the lattice fixed frame of reference so as to understand the complex mechanical behavior of TRIP steels after different isothermal bainitic transformation treatments. The effect of Si and Mn on transformation induced plasticity (TRIP) was discussed according to thermodynamic and kinetic analyses. It is recognized that Al also induces phase transformation in the steels but its TRIP effect is not as strong as that of Si.
参考文献
| [1] | K.Sugimoto;N.Usui;M.Kobayashi;S.Hashimoto .[J].ISIJ International,1992,32(12):1311. |
| [2] | Y Sakuma;O Matsumura;O Akisue .[J].ISIJ International,1991,A1(11):1348. |
| [3] | S.K.Liu;W.J.Zhang .[J].Metallurgical and Materials Transactions,1990,21A:1517. |
| [4] | M.D.Meyer;D.Vanderschueren;B.C.D.Cooman .[J].ISIJ International,1999,39(08):813. |
| [5] | S.C.Balk;S.Kim;Y.S.Jin;O.Kwon .[J].ISIJ International,2001,41(03):290. |
| [6] | V F Zackay;ERParker;D Fahr .[J].Transactions Am Soc Meter,1967,60:252. |
| [7] | H C Chen;H Era;M Shimizu .[J].Metallurgical and Materials Transactions,1989,20:437. |
| [8] | M.Hillert;L.I.Staffansson .[J].Acta Chemica Scandinavica,1970,24:3618. |
| [9] | B Sundman;J Agren .[J].Journal of Physics and Chemistry of Solids,1981,42:297. |
| [10] | B Sundman;B Jasson;J O Andersson .[J].CALPHAD-Computer Coupling of Phase Diagrams and Thermochemistry,1985,9(02):153. |
| [11] | J.Agren .[J].ISIJ International,1992,32(03):291. |
| [12] | Editorial committee of ＜Handbook of Heat Treatment＞,Handbook of Heat Treatment,vol.4,A-85,Beijing,1978. (in Chinese[M]. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%