对低过热度浇注的半同态2024铝合金坯料分别以0.12,0.26和0.52℃/s的平均升温速率加热至625℃并保温;利用光学显微镜和金相图像分析系统研究了升温速率对坯料部分重熔组织的影响.结果表明,升温速率越快,坯料重熔越快,重熔后晶粒越细小和圆整.提高升温速率,有利于抑制晶间共晶相的溶解扩散和提高坯料的熔化过热温度,加快晶问液相形成,对晶粒合并长大具有一定的抑制作用,并加速晶粒球化.
参考文献
| [1] | Flemings M C.Metall Traus,1991; 22:957 |
| [2] | Fan Z.Int Mater Rev,2002; 47:49 |
| [3] | Luo S J,Jiang J F,Du Z M.Chin J Mech Eng,2003;39(11):52(罗守靖,姜巨福,杜之明.机械工程学报,2003;39(11):52) |
| [4] | Seo P K,Kang C G.J Mater Process Technol,2005; 162:402 |
| [5] | Zoqui E J,Shehata M T,Paes M,Kao V,Essadiqi E.Mater Sci Eng,2002; A325:38 |
| [6] | Li Y D,Hao Y,Chen T J,Ma Y.Chin J Nonferrous Met,2004; 14:366 (李元东,郝远,陈体军,马颖.中国有色金属学报,2004;14:366) |
| [7] | Liu C M,He N J,Li J K.J Mater Sci,2001; 36:4949 |
| [8] | Le Q C,Zhaag X J,Cui J Z,Lu G M,Ou P.Acta Metall Sin,2002; 38:1266(乐启炽,张新建,崔建忠,路贵民,欧鹏.金属学报,2002;38:1266) |
| [9] | Zhou Q,Yang Y S,Tang J L,Hu Z Q.Acta Metall Sin,2006; 42:28(周全,杨院生,唐军立,胡壮麒.金属学报,2006;42:28) |
| [10] | Jung H K.J Mater Process Technol,2000; 105:176 |
| [11] | Jiang H,Nguyen T H,Prud M.d MaSer Process Technol,2007; 189:182 |
| [12] | Cui C L,Mao W M,Zhao A M,Sun F,Zhen Z S,Zhong X Y.Chin J Nonferrous Met,2000; 10:809 (崔成林,毛卫民,赵爱民,孙峰,甄子胜,钟雪友.中国有色金属学报,2000;10:809) |
| [13] | Easton M A,Kaufmann H,Fragner W.Mater Sci Eng,2006; A420:135 |
| [14] | Lashkari O,Nafisi S,Ghomashchi R.Mater Sci Eng,2006; A441:49 |
| [15] | Liu Z,Mao W M,Zhao Z D.Trans Nonferrous Met Soc Chin,2006; 16:71 |
| [16] | Liu Z H,Xu G H,Zhang H L.Thermal Analysis Apparatus.Beijing:Chemistry Industry Press,2006:193(刘振海,徐国华,张洪林.热分析仪器.北京:化学工业出版社,2006:193) |
| [17] | Yu S R,Li D C,Kim N.Mater Sci Eng,2006; A420:165 |
| [18] | Tzimas E,Zavaliangos A.Mater Sci Eng,2000; A289:228 |
| [19] | Hu H Q.Metal Solidification Principle.Beijing:Mechanical Industry Press,1991:26(胡汉起.金属凝固原理.北京:机械工业出版社,1991:26) |
| [20] | Kang M K,Kim D Y,Hwang N M.J Euro Ceram Soc,2002; 22:603 |
| [21] | Chen T J,Hao Y,Sun J.J MaSer Sci Technol,2002; 18:481 |
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