利用定量逐层研磨和计算机辅助重建及可视化技术,研究了Fe-0.28C-3.0Mo(质量分数,%)合金钢中TTT曲线港湾形鼻尖温度以下形成的退化铁素体的三维形态.三维观察和分析表明,退化铁素体最初在奥氏体晶界形成,然后不是向晶界扩展,而是长向晶内退化铁素体由棒状亚单元组成,每个亚单元的直径为1-2μm,长度为几微米.该合金钢中退化铁素体的奇特形貌可能是由铁素体晶粒的重复形核、长大以及相临铁素体晶粒的合并而形成的.
参考文献
| [1] | Kinsman K R,Aaronson H I.In:Transformation and Hardenability in Steels.Ann Arbor,MI:Climax Molybdenum Co.,1967:39 |
| [2] | Tsubakino H,Aaronson H I.Metall Trans,1987;18A:2047 |
| [3] | Shiflet G J,Aaronson H I.Metall Trans,1990;21A:1413 |
| [4] | Reynolds W T Jr,Li F Z,Shui C K,Aaronson H I.Metall Trans,1990;21A:1433 |
| [5] | Glodenstein H,Aaronson H I.Metall Trans,1990;21A:1465 |
| [6] | Liu S K,Yang L,Zhu D G,Zhang J.Metall Mater Trans,1994;25A:1991 |
| [7] | Kral M V,Spanos G.Acta Mater,1999;47:711 |
| [8] | Kral M V,Mangan M A,Spanos G,Rosenberg R O.Mater Charact,2000;45:17 |
| [9] | Mangan M A,Lauren P D,Shiflet G J.J Microsc,1997;188:36 |
| [10] | Wolfsdorf T L,Bender W H,Voorhees P W.Acta Mater,1997;45:2279 |
| [11] | Wu K M,Kagayama M,Enomoto M.Mater Sci Eng,2003;A343:143 |
| [12] | Wu K M,Yokomizo T,Enomoto M.ISIJ Int,2002;42:1144 |
| [13] | Wu K M,Enomoto M,Marukami T,Nanba S.Mater Charact,2004;52:121 |
| [14] | Oblak J M,Hehemann R F.In:Transformation and Hardenability in Steels.Ann Arbor,MI:Climax Molybdenum Co.,1967:15 |
| [15] | Aaronson H I,Spanos G,Masamura R A,Vardiman R G,Moon D W,Menon E S K.Mater Sci Eng,1995;B32:10 |
| [16] | Spanos G,Aaronson H I.Scr Metall,1988;22:37 |
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%