采用Thermo-Calc热力学软件模拟了30Cr3Si2Mn2NiNb钢奥氏体化时平衡相的演化规律以及非平衡态相的演化规律,研究了合金元素C,Mo,Nb和V对实验钢中未溶相的影响.通过SEM,XRD对30Cr3Si2Mn2NiNb钢淬火态组织进行实验观察及分析.结果表明:常规奥氏体化处理后,钢中未溶相主要有富Nb的MC相及富Mo的M6C相；当奥氏体化温度高于950℃时,M6C相完全溶解,MC相显著减少；30Cr3Si2Mn2NiNb钢适宜的奥氏体化温度为950～1000℃.计算结果指出,C,Nb抑制MC未溶相的溶解,V,Mo促进MC未溶相的溶解.
参考文献
| [1] | YOUNGBLOOD J L;RAGHAVAN M .Correlation of microstructure with mechanical properties of 300M steel[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1977,8A(09):1439-1448. |
| [2] | AGREN J .Computer simulation of diffusion reaction in complex[J].ISIJ International,1992,32(03):291-296. |
| [3] | Andersson JO.;Helander T.;Hoglund LH.;Shi PF.;Sundman B. .THERMO-CALC & DICTRA, computational tools for materials science[J].Calphad: Computer Coupling of Phase Diagrams and Thermochemistry,2002(2):273-312. |
| [4] | LIU Zi-kui;LARS HOGLUND;BJORN JONSSON et al.An experimental and theoretical study of cementite dissolution in an Fe-Cr-C alloy[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1991,22A(08):1745-1752. |
| [5] | ANDERS BJARBO;MATS HATTESTRAND .Complex Carbide Growth, Dissolution, and Coarsening in a Modified 12 Pct Chromium Steel-an Experimental and Theoretical Study[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2001(1):19-27. |
| [6] | ANDERSSON J-O;AGREN J .Models for numerical treatment of multicomponent diffusion in simple phase[J].Journal of Applied Physics,1992,72(04):1350-1355. |
| [7] | COELHO G C;GOLCZEWSKI J A;FISCHMEISTER H F .Thermodynamic calculation for Nb-containing high-speed steels and white-cast-iron alloys[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,2003,34A(09):1749-1758. |
| [8] | 胡心彬;李麟;吴晓春 .新型热作模具钢的合金成分设计[J].热处理,2004,19(03):27-31. |
| [9] | W. Sha .Thermodynamic calculations for precipitation in maraging steels[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2000(11/12):1434-1436. |
| [10] | 姜越.马氏体时效不锈钢高温析出相的热力学计算[J].特殊钢,2007(03):38-40. |
| [11] | 丁雅莉,苏杰,陈嘉砚,杨才福,程士明.S-04马氏体时效不锈钢析出相的热力学计算及强化工艺的优化[J].钢铁研究学报,2003(06):38-41. |
| [12] | Maurizio VEDANI;Aldo MANNUCCI .Effects of Titanium Addition on Precipitate and Microstructural Control in C-Mn Microalloyed Steels[J].ISIJ International,2002(12):1520-1526. |
| [13] | Frisk K;Bratberg J;Markstrom A .Thermodynamic modelling of the M6C carbide in cemented carbides and high-speed steel[J].Calphad: Computer Coupling of Phase Diagrams and Thermochemistry,2005(2):91-96. |
| [14] | JOHN R PAULES;MORRIS F DILMORE;KEVIN J HANDERHAN .Development of Eglin steel-a new,ultrahigh-strength steel for armament aerospace applications[J].Materials Science and Technology,2005,2(09):13-23. |
| [15] | KARIN FRISK .Thermodynamic modelling of multicomponent cubic Nb,Ti and V carbides/carbonitrides[J].CALPHAD-Computer Coupling of Phase Diagrams and Thermochemistry,2008,32(12):326-337. |
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%