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| Effect of hot isostatic pressing on densification and microstructure evolution mechanism of castings |
| SHAO Chong1,2，YIN Fa-jie1，ZHU Xiao-ping1,2，GAO Shi-shan1,2，LI Jun-tao1 |
1. Central Iron and Steel Research Institute， Beijing 100081， China
2. Hebei Gangyan Dekai Science and Technology Ltd.， Zhuozhou 072750， China |
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Abstract The densification mechanism of hot isostatic pressed castings was studied， and the hot isostatic pressing densification model was analyzed. Based on the alloy creep theory and powder metallurgy sintering theory， the mechanism of the internal pores defect closure during the process of hot isostatic pressing was discussed by using the existing physical and mathematical models. It is confirmed that the pore deformation mechanism plays an important role for the casting densification in the process of hot isostatic pressing， which provides a theoretical guide for the selection of appropriate process parameters for hot isostatic pressing.
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Received: 07 March 2016
Published: 20 April 2016
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| 1、Fundamental Aspects of Hot Isostatic Pressing: An OverviewH.V. ATKINSON and S. DAVIESHot isostatic METALLURGICAL AND MATERIALS TRANSACTIONS A VOLUME 31A, DECEMBER 2000—29812、ReviewHot Isostatic Pressing (HIP) technology and itsapplications to metals and ceramics M. H. BOCANEGRA-BERNAL JOURNAL OF MATERIALS SCIENCE 39 (2 004) 6399 – 64203、G. Appa Rao, K. Satya Prasad, M. Kumar, M. Srinivas, D.S. Sarma, J. Mater. Sci. Technol. 19 (2003) 1–9.4、HIP'ING VARIOUS PRECISION CAST ENGINE COMPONENTS IN NICKEL- BASE SUPERALLOYS. M. Lamberigts, E. Diderrich, D. Coutsouradis - E. de Lamotte, J.M. Drapier, E. Deridder superalloy 1980-265、ELIMINATION OF CASTING DEFECTS USING HIP Wasielewski and N. R. Lindblad superalloy 1972-046、Effect of HIP process on the micro-structural evolution of a nickel-based superalloyM.T. Kim?, S.Y. Chang, J.B. Won Materials Science and Engineering A 441 (2006) 126–1347、粉末烧结理论 果世驹 编著 冶金工业出版社 20028、铸造高温合金的热等静压的致密化作用机理 张善勇 隋玉俭 钢铁研究学报 Volume.5，Suppl.,77~839、热压和热等静压过程中压力对扩散迁移的影响 段运亨 隋玉俭 粉末冶金文集 198410、Coble R L A model for boundary-diffusion controlled creep in polycrystalline materials. J. Appl. phys. 1963,34(4):1679~168211、位错蠕变理论的现状和发展 阳志安 材料科学与工程 1987 0312、13、weertman J. steady state creep of crystals. J. Appl. Phys., 1957,28(10):1185~118914、15、铸造高温合金热等静压致密化机理 张善勇 硕士论文 198416、N．H． Nachtrieb et al., Effect of pressure on self-diffusion in lead: J. chem. Phys. 31,1959 P13517、J.-C. Chang, Y.-H. Yun, C. Choi, J.-C. Kim, J. Mater. Eng. Perform. 12 (2003) 420–425.18、热等静压对元素扩散及镍基合金组织和性能的影响 潘钢 王声宏 钢铁研究学报 Vol.1,suppl.Oct. 198919、热等静压后炉冷对K488合金显微组织和力学性能的影响 刘晓功, 饶 洋, 肖程波, 唐定中 航 空 材 料 学 报 Vol128, No13 20、熔铸TiAl合金热等静压处理的研究 熊翔 黄伯云 中国有色金属学报 第5卷第3期21、热等静压和热处理对快凝NiAl-Cr（Mo）-Hf共晶合金显微组织和压缩性能的影响 盛立远 郭建亭等 金属学报 第45卷 第9期 第1025-1029页。22、铸造In718C合金热等静压组织研究 赵京晨等 金属学报 1995增刊 S6123、THE METALLURGICAL ASPECTS OF HOT ISOSTATICALLY PRESSED SUPERALLOY CASTINGS K.C. Antony J.F. Radavich superalloy 198024、Jae-Chul Kim Journal of Materials Engineering and Performance Volume 12(4) August 12:420-42525、热等静压处理对DD8单晶合金组织及性能影响 李英敖等金属学报 1995增刊 S290 |
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2016, Vol. 26 
