核反应堆压力容器(RPV)模拟钢样品经过660℃调质处理和370℃时效3000h后,用原子探针层析法研究了晶界和相界面上原子偏聚的特征.结果表明,Ni,Mn,Si,C,P和Mo在晶界处均有不同程度的偏聚,偏聚倾向由强到弱依次为:C,P,Mo,Si,Mn和Ni.Cu在晶界处会出现贫化现象.Si在晶界上的偏聚程度与晶界的特性有关.在这几种元素中,C在晶界上偏聚的宽度最大,如以成分分布图中浓度峰的半高宽来比较,C的偏聚宽度是Mn,Ni和Mo的1.5倍.在富Cu相与α-Fe的相界面处,Ni和Mn有明显的偏聚,而C,P,Mo和Si倾向偏聚在相界面的α-Fe一侧,且偏聚的程度比晶界处的低.
参考文献
| [1] | Takaki S,Fujioka M,Aihara S,Nagataki Y,Yamashita T,Sano N,Adachi Y,Nomura M,Yaguchi H.Mater Trans,2004;45:2239 |
| [2] | García-Mazarío M,Lancha A M,Hernández-Mayoral M.J Nucl Mater,2007;360:293 |
| [3] | Laha K,Kyono J,Kishimoto S,Shinya N.Scr Mater,2005;52:675 |
| [4] | Bowen P,Hippsley C A,Knott J F.Acta Metall,1984;32:637 |
| [5] | Bulloch J H.Int J Pres Ves Pip,1988;33:197 |
| [6] | Wang K,Xu T D,Shao C,Yang C.J Iton Steel Res Int,2011;18:61 |
| [7] | Wei W,Grabke H J.Corros Sci,1986;26:223 |
| [8] | Atrens A,Wang J Q,Stiller K,Andren H O.Corros Sci,2006;48:79 |
| [9] | Heo N H,Jung Y C,Lee J K,Kim K T.Scr Mater,2008;59:1200 |
| [10] | Lemarchand D,Cadel E,Chambreland S,Blavette D.Philos Mag,2002;82A:1651 |
| [11] | Kolli R P,Seidman D N.Acta Mater,2008;56:2073 |
| [12] | Wu J,Song S H,Weng L Q,Xi T H,Yuan Z X.Mater Charact,2008;59:261 |
| [13] | Khalid F A.Scr Mater,2001;44:797 |
| [14] | Hudson D,Smith G D W.Scr Mater,2009;61:411 |
| [15] | Sha G,Yao L,Liao X Z,Ringer S P,Duan Z C,Langdon T G.Ultramicroscopy,2011;111:500 |
| [16] | Isheim D,Kolli R P,Fine M E,Seidman D N.Scr Mater,2006;55:35 |
| [17] | Etienne A,Radiguet B,Cunningham N J,Odette G R,Valiev R,Pareige P.Ultramicroscopy,2011;111:659 |
| [18] | Li H,Xia S,Zhou B X,Liu W Q.Mater Charact,2012;66:68 |
| [19] | Toyama T,Nagai Y,Tang Z,Hasegawa M,Almazouzi A,van Walle E,Gerard R.Acta Mater,2007;55;6852 |
| [20] | Bischler P J E,Wild R K.In:Gelles D S,Nanstad R K,Kumar A S,Little E A eds.,Effects of Radiation on Materials:17th International Symposium,ASTM STP 1270,West Conshohocken,PA:American Society for Testing and Materials,1996:260 |
| [21] | Miller M K.Atom Probe Tomography:Analysis at the Atomic Level.New York:Kliwer Academic/Plenum Publishers,2000:25 |
| [22] | Yong Q L.Secondary Phase in Steel.Beijing:Metallurgical Industry Press,2006:127(雍其龙.钢铁材料中的第二相.北京:冶金工业出版社,2006:127) |
| [23] | Hornbogen E,Glenn R C.Trans Metall Soc AIME,1960;218:1064 |
| [24] | Xu G,Chu D F,Cai L L,Zhou B X,Wang W,Peng J C.Acta Metall Sin,2011;7:905(徐刚,楚大锋,蔡琳玲,周邦新,王伟,彭剑超.金属学报,2011:47:905) |
| [25] | Vurpillot F,Cerezo A,Blavette D,Larson D J.Microsc Microanal,2004;10:384 |
| [26] | Blavette D,Duval P,Letellier L,Guttmann M.Acta Mater,1996;44:4995 |
| [27] | Faulkner R G,Jones R B,Zheng L,Flewett P E J.Philos Mag,2005;85:2065 |
| [28] | Suzuki S,Obata M,Abiko K,Kimura H.Scr Metall,1983;17:1325 |
| [29] | Cerezo A,Clifton P H,Lozano-Perez S,Panayi P,Sha G,Smith G D W.Microsc Microanal,2007;13:408 |
| [30] | Jiao Z,Was G S.Acta Mater,2011;59:4467 |
| [31] | Chu D F,Xu G,Wang W,Peng J C,Wang J A,Zhou B X.Acta Metall Sin,2011:47:269(楚大锋,徐刚,王伟,彭剑超,王均安,周邦新.金属学报,2011;47:269) |
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%