The dynamic observations of bainitic transformation in a Fe-C-Mn-Si superbainite steel were conducted on a high temperature laser scanning confocal microscope. It is indicated that the mutual intersection of bainite sheaves often occurs during growth of bainite ferrite, resulting in an interlocked bainite microstructure. Moreover, bainite transformation is promoted by higher austenization temperature and the longer and ifner bainite platelets are obtained. Further, The average growth rate of bainite after austenization at 1 100℃ is calculated as 5.8 μm·s-1. In situ observation investigation makes it possible to identify bainite transformation in real time during isothermal holding.
参考文献
| [1] | Zhu KY;Oberbillig C;Musik C et al.Effect of B and B + Nb on the Bainitic Transformation in Low Carbon Steels[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2011,528(12):4222. |
| [2] | Das S;Timokhina I;Singh SB et al.Effect of Bainitic Transformation on Bake Hardening in TRIP Assisted steel[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2012,534:485. |
| [3] | Lambers HG;Canadinc D;Maier HJ .Evolution of Transformation Plasticity in Austenite-to-bainite Phase Transformation:A Multi Parameter Problem[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2012,541(08):73. |
| [4] | Li HY;Lu XW;Wu XC et al.Bainitic Transformation during the Two-Step Quenching and Partitioning Process in a Medium Carbon Steel Containing Silicon[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2010,527(23):6255. |
| [5] | Di Zhang;Hidenori Terasaki;Yu-ichi Komizo .In situ observation of phase transformation in Fe-0.15C binary alloy[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2009(1/2):929-933. |
| [6] | Kolmskog P;Borgenstam A;Hillert M et al.Direct Observation that Bainite Can Grow Below MS[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,2012,43(13):4984. |
| [7] | Kang MK;Zhang MX;Zhu M .In situ Observation of Bainite Growth during Isothermal Holding[J].ACTA MATERIALIA,2006,54(08):2121. |
| [8] | Yada H;Enomoto M;Sonoyama T .Lengthening Kinetics of Bainitic Plates in Iron-nickel-carbon Alloys[J].ISIJ International,1995,35(08):976. |
| [9] | Xu G;Liu F;Wang L et al.A new Approach to Quantitative Analysis of Bainitic Transformation in a Superbainite Steel[J].Scripta Materialia,2013,68:833. |
| [10] | Kang MK;Zhu M;Zhang MX .Mechanism of Bainite Nucleation in Steel,Iron and Copper Alloys[J].J Mater Sci Techol,2005,21(04):437. |
| [11] | Bhadeshia HKDH .The Bainite Transformation:Unresolved Issues[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,1999,273-275:58. |
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%