利用OM和SEM研究了核反应堆驱动机构用12Cr13不锈钢的组织特征,分析了退火态组织中碳化物形貌及其对冲击韧性的影响.实验结果表明,碳化物形貌是决定不锈钢冲击韧性的关键因素.分布在原马氏体晶粒内、尺寸细小、分布均匀的颗粒状碳化物可显著改善12Cr13的冲击性能;而分布在晶界上的块状和条状碳化物,以及铁索体晶粒内随机分布的大颗粒状碳化物,则严重恶化不锈钢的冲击韧性.退火温度对碳化物析出和分布具有较大影响,当退火处理温度由760℃升高到860℃时,碳化物尺寸增大,使得12Cr13不锈钢的冲击功由151 J降低到106 J;当碳化物完全消失且呈块状或条状分布时,不锈钢冲击功降低至5J.
参考文献
| [1] | Cardoso P H S,Kwietniewski C,Porto J P,Reguly A,Strohaecker T R.Mater Sci Eng,2003; A351:1 |
| [2] | Li H S.Special Steel Technol,2006; 12(49):25(李海生.特钢技术,2006; 12(49):25) |
| [3] | Nikitin P N,Muraveva E M,Rudnev N F,Elyutina G I.Met Sci Heat Treat,1979; 20:573 |
| [4] | Mulford R A,Mcmahon C J,Pope D P,Feng H C.Metall Mater Trans,1976; 7A:1183 |
| [5] | Wen D C.Mater Trans,2006; 47:2779 |
| [6] | Bhadeshia H K D H,Honeycombe R W K.SteelMicrostructure and Properties.3rd Ed.,London:Linacre House,2006:247 |
| [7] | Wang X F,Qiao X L.Special Steel,1991; 12(6):34(王晓芳,乔雪莲.特殊钢,1991;12(6):34) |
| [8] | Fujita Teruo.Translated by Ding W H,Zhang X J,Chen Y Z.Heat Treatment of Stainless Steels.Beijing:China Machine Press,1983:30(藤田辉夫著;丁文华,张绪江,陈玉璋 译.不锈钢的热处理.北京:机械工业出版社,1983:30) |
| [9] | Miao B H,Northwood D O.Mater Sci Eng,1993; A171:21 |
| [10] | LiL C,Lai M O,Ma J.Mater Sci Eng,1993; A171:13 |
| [11] | Bain E C.Functions of the Alloying Elements in Steel.Ohio:American Society for Metals,1945:265 |
| [12] | Briant C L,Banerji S K.Int Met Rev,1978; 23:164 |
| [13] | Beachem C D.Metall Trans,1975; 2:377 |
| [14] | Zhang W H. Stainless Steels and Heat Treatment.Shenyang:Liaoning Science and Technology Publishing House,2010:119(张文华.不锈钢及其热处理.沈阳:辽宁科学技术出版社,2010:119) |
| [15] | Tsai M C,Chiou C S,Du J S,Yang J R.Mater Sci Eng,2002; A332:1 |
| [16] | Cui Z Q,Tan Y C.Metallography and Heat Treatment.2nd Ed.,Beijing:China Machine Press,2007:268(崔忠圻,覃耀春.金属学与热处理.第二版,北京:机械工业出版社,2007:268) |
| [17] | Li J H,Lin D C.Metallographical Atlas for Metallic Materials.Beijing:China Machine Press,2007:969(李炯辉,林德成.金属材料金相图谱.北京:机械工业出版社,2007:969) |
| [18] | Mao W M,Zhu J C,Li J,Long Y,Fan Q C.The Structure and Properties of Metallic Materials.Beijing:Tsinghua University Press,2008:200(毛卫民,朱景川,郦剑,龙毅,范群成.金属材料结构与性能.北京:清华大学出版社,2008:200) |
| [19] | Huang Q Y,Li H K.Superalloy.Beijing:Metallurgical Industry Press,2000:28(黄乾尧,李汉康.高温合金.北京:冶金工业出版社,2000:28) |
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%