Study on Technology of Super-Alloy GH4169 During Hot Tube Extrusion

IMR OpenIR

	Study on Technology of Super-Alloy GH4169 During Hot Tube Extrusion; Study on Technology of Super-Alloy GH4169 During Hot Tube Extrusion
	Z. T. Wang; S. H. Zhang; D. F. Li
	2010 ; 2010
发表期刊	Journal of Iron and Steel Research International ; Journal of Iron and Steel Research International
ISSN	1006-706X ; 1006-706X
卷号	17 页码:18-23
摘要	The processing parameters of tube extrusion for super-alloy GH4169, such as billet temperature, tools temperature, lubricant, extrusion ratio and extrusion speed, have been determined by experiment in this paper. An appropriate temperature range recommended for the billet is 1080-1120 degrees C, and the temperature range of the tools is 350-500 degrees C. The microstructural evolution of super-alloy GH4169 during tube extrusion was analyzed. With the increasing of the deformation, the cross crystal grains are slightly refined. The vertical crystal grain is elongated evidently and the tensile strength increases along the axial rake. Glass lubricants have to be spread on the billet surface after heated to 150-200 degrees C, and graphite can be used as the lubricant on the surface of the tools. In this case the extrusion force can be reduced remarkably. Theoretical calculation formula of punch force during tube extrusion has been determined by means of slab method. The theoretical results of extrusion force given by the calculating formula approach to that of the experiment and the relative errors are less than 20%. The microstructure of extruded tubes is refined, and the grains dimensions are about 50 mu m, which is third of the initial billet grains.; The processing parameters of tube extrusion for super-alloy GH4169, such as billet temperature, tools temperature, lubricant, extrusion ratio and extrusion speed, have been determined by experiment in this paper. An appropriate temperature range recommended for the billet is 1080-1120 degrees C, and the temperature range of the tools is 350-500 degrees C. The microstructural evolution of super-alloy GH4169 during tube extrusion was analyzed. With the increasing of the deformation, the cross crystal grains are slightly refined. The vertical crystal grain is elongated evidently and the tensile strength increases along the axial rake. Glass lubricants have to be spread on the billet surface after heated to 150-200 degrees C, and graphite can be used as the lubricant on the surface of the tools. In this case the extrusion force can be reduced remarkably. Theoretical calculation formula of punch force during tube extrusion has been determined by means of slab method. The theoretical results of extrusion force given by the calculating formula approach to that of the experiment and the relative errors are less than 20%. The microstructure of extruded tubes is refined, and the grains dimensions are about 50 mu m, which is third of the initial billet grains.
部门归属	[wang zhong-tang] shenyang ligong univ, sch mat sci & engn, shenyang 110168, liaoning, peoples r china. [zhang shi-hong] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china. [li de-fu] gen res inst nonferrous met, beijing 100088, peoples r china.;wang, zt (reprint author), shenyang ligong univ, sch mat sci & engn, shenyang 110168, liaoning, peoples r china ; [wang zhong-tang] shenyang ligong univ, sch mat sci & engn, shenyang 110168, liaoning, peoples r china. [zhang shi-hong] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china. [li de-fu] gen res inst nonferrous met, beijing 100088, peoples r china.;wang, zt (reprint author), shenyang ligong univ, sch mat sci & engn, shenyang 110168, liaoning, peoples r china
关键词	Superalloy Gh4169 Superalloy Gh4169 Tube Extrusion Tube Extrusion Microstructure Evolution Microstructure Evolution Upper-bound Analysis Upper-bound Analysis Die Die Deformation Deformation Mandrel Mandrel
URL	查看原文 ; 查看原文
WOS记录号	WOS:000276729300005 ; WOS:000276729300005
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31566
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. T. Wang,S. H. Zhang,D. F. Li. Study on Technology of Super-Alloy GH4169 During Hot Tube Extrusion, Study on Technology of Super-Alloy GH4169 During Hot Tube Extrusion[J]. Journal of Iron and Steel Research International, Journal of Iron and Steel Research International,2010, 2010,17, 17:18-23, 18-23.
APA	Z. T. Wang,S. H. Zhang,&D. F. Li.(2010).Study on Technology of Super-Alloy GH4169 During Hot Tube Extrusion.Journal of Iron and Steel Research International,17,18-23.
MLA	Z. T. Wang,et al."Study on Technology of Super-Alloy GH4169 During Hot Tube Extrusion".Journal of Iron and Steel Research International 17(2010):18-23.