熔融颗粒相变冷却过程广泛存在于合金材料制造、高温熔渣余热回收和相变材料的储放热等领域.本文研究了铅锡合金熔融颗粒在沉降过程中的风冷相变换热特性和物相演变之间的关联.结果表明:风速越大、下落高度越高、颗粒直径越小,换热系数越大;风速越大、颗粒直径越小,合金过冷度越大;换热系数和合金过冷度越大时,形成的非稳态组织富锡相含量越高,且组织越细小致密.
参考文献
| [1] | Shu Li;Ping Wu;Hiroki Fukuda;Teiichi Ando .Simulation of the solidification of gas-atomized Sn-5mass%Pb droplets[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2009(1/2):396-403. |
| [2] | Hui Zhang;Hong Wang;Xun Zhu;Yong-Jun Qiu;Kai Li;Rong Chen;Qiang Liao .A review of waste heat recovery technologies towards molten slag in steel industry[J].Applied energy,2013(Dec.):956-966. |
| [3] | 杨小平,杨晓西,丁静,秦贯丰,蒋润花.高温相变蓄热系统热性能分析[J].工程热物理学报,2013(03):513-516. |
| [4] | 吴萍,田雅丽,姜恩永,唐文超,Hiroki Fukuda,Teiichi Ando.Sn-Pb合金颗粒异质成核及其冷却凝固行为预测[J].化学物理学报,2004(04):471-475. |
| [5] | Toshio MIZUOCHI;Tomohiro AKIYAMA;Taihei SHIMADA .Feasibility of Rotary Cup Atomizer for Slag Granulation[J].ISIJ International,2001(12):1423-1428. |
| [6] | 罗兴宏,陈亮.利用落管研究微重力环境对中低熔点合金凝固过程的影响[J].中国科学E辑,2008(01):1-8. |
| [7] | N. Yan;W.L Wang;B. Wei.Complex phase separation of ternary Co-Cu-Pb alloy under containerless processing condition[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2013:109-116. |
| [8] | 邢宏伟,王晓娣,龙跃,张玉柱.粒化钢渣相变传热过程数值模拟[J].钢铁钒钛,2010(01):79-83. |
| [9] | 潘明祥,陈熙琛.球形落管试样的冷却及重力水平研究[J].物理,1988(08):475. |
| [10] | 吴萍,Teiichi Ando,Hiroki Fukuda,Chuck Tuffile.Sn-Pb合金微粒的制备和微结构[J].材料研究学报,2003(01):92-96. |
| [11] | 周孑民,涂娟,林燕,孙晓玲,张忠霞,肖志伟.锡和铅-锡合金相变点附近导热系数的测定[J].有色金属,2006(03):36-38. |
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