采用12T强磁场热处理装置研究了强磁场下不同奥氏体化温度退火对高纯Fe-0.36C合金先共析铁素体组织形貌的影响. 结果表明: 强磁场能够显著抑制针状铁素体的形成,并使先共析铁素体晶粒沿磁场方向伸长且呈链状排列. 这是由于强磁场增加的相变驱动力克服了由界面能和退磁场能构成的相变阻力所致. 随奥氏体化温度升高,先共析铁素体晶粒沿磁场方向伸长程度逐渐减弱,针状铁素体面积分数增加,这是由于奥氏体晶粒粗大化而引起的退磁场能的被削弱程度降低所致.
参考文献
| [1] | Ohtsuka H;Xu Y;Sakka Y et al.Structural control of ceramics and metals by high magnetic field[J].Ceramics Japan,2002,7(35):512-516. |
| [2] | Ohtsuka H;Xu Y .Recent studies on structural control and functional control of materials through phase thansformations in high magnetic field[J].Bulletin of the Iron and Steel Institute of Japan,2000,5(01):9-16. |
| [3] | Ohtsuka H .Effect of a high magnetic field on diffusional transformation behavior and structure[J].Materia Japan,2001,40(06):552-555. |
| [4] | Hui Guo;Masato Enomoto .Influence of magnetic fields on α/γ equilibrium in Fe-C(-X) alloys[J].Materials transactions,2000(8):911-916. |
| [5] | Miyauchi H;Fukuda T;Kakeshita T .Effect of magnetic field on γ→α equilibrium temperature of pure Fe[J].Current Advances in Materials and Processes,2004,17(29):1227. |
| [6] | Joo H D;Choi J K;Kim S U et al.An effect of a strong magnetic field on the phase transformation in plain carbon steel[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,2004,35A:1663. |
| [7] | Zhang YD;Vincent G;Dewobroto N;Germain L;Zhao X;Zuo L;Esling C .The effects of thermal processing in a magnetic field on grain boundary characters of ferrite in a medium carbon steel[J].Journal of Materials Science,2005(4):903-908. |
| [8] | H.D. Joo;S.U. Kim;N.S. Shin .An effect of high magnetic field on phase transformation in Fe-C system[J].Materials Letters,2000(5/6):225-229. |
| [9] | 郝新江,OHTSUKA Hideyuki.强磁场对铁基合金相变温度和显微组织的影响[J].材料与冶金学报,2005(02):132-137. |
| [10] | Choi J-K.;Ohtsuka H. .EFFECTS OF A STRONG MAGNETIC FIELD ON THE PHASE STABILITY OF PLAIN CARBON STEELS[J].Scripta materialia,2000(3):221-226. |
| [11] | Ohtsuka H;Hao X J.Effects of a high magnetic field on diffusional transformation behavior and structures[A].,2006:11-26. |
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%