Study on Processing Map of Homogenized GH3625 Superalloy and Its Tube Manufacturing by Short-flow Hot Extrusion

doi:10.11896/cldb.18080005

	Study on Processing Map of Homogenized GH3625 Superalloy and Its Tube Manufacturing by Short-flow Hot Extrusion
	Ding, Yutian 1,3; Chen, Jianjun 1,3; Li, Haifeng 2; Gao, Yubi 1,3; Xu, Jiayu 1,3; Ma, Yuanjun 1,3
刊名	Cailiao Daobao/Materials Reports
	2019-08-25
卷号	33 期号:8 页码:2753-2758
关键词	Dynamic recrystallization Extrusion Strain hardening Stress-strain curves Superalloys Tubes (components) Dynamic material models Dynamic recrystallization (DRX) Hot deformation behaviors Hot extrusion Microstructure and mechanical properties Processing maps Thermal compressions True stress strain curve
ISSN号	1005023X
DOI	10.11896/cldb.18080005
英文摘要	The isothermal compression experiments of homogenized GH3625 superalloy were carried out on a Gleeble-3800 thermal simulator, aiming at studying the hot deformation behavior of the alloy in the temperature range of 800-1 200 and strain rate range of 0.01-10 s-1. The processing map of this alloy was established on the basis of dynamic material model, then the GH3625 superalloy seamless tube was manufactured by short-flow hot extrusion on a horizontal extruder according to the processing map, and its feasibility was verified. The results showed that the work-hardening and softening caused by dynamic recrystallization of GH3625 acted together in the process of thermal compression, which made the true stress-strain curves exhibited typical dynamic recrystallization characteristics. The safe region with maximum peak efficiency was 0.48, which could be observed in the processing map in the temperature range of 1 150-1 200 and strain rate range of 0.01-0.1 s-1. The GH3625 superalloy tube with size of Φ43 mm×9.5 mm had been successfully extruded from the hollow tube under the preheating temperature of 1 150, fixed extrusion speed of 50 mm/s, and extrusion ratio of 7.4. The GH3625 tubes manufactured by short-flow hot extrusion presented similar microstructure and mechanical properties to the one prepared by traditional hot extrusion process. © 2019, Materials Review Magazine. All right reserved.
语种	中文
出版者	Cailiao Daobaoshe/ Materials Review
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114289]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Changzhou Hengfeng Special Conductor Co., Ltd, Changzhou; 213000, China 3.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Ding, Yutian,Chen, Jianjun,Li, Haifeng,et al. Study on Processing Map of Homogenized GH3625 Superalloy and Its Tube Manufacturing by Short-flow Hot Extrusion[J]. Cailiao Daobao/Materials Reports,2019,33(8):2753-2758.
APA	Ding, Yutian,Chen, Jianjun,Li, Haifeng,Gao, Yubi,Xu, Jiayu,&Ma, Yuanjun.(2019).Study on Processing Map of Homogenized GH3625 Superalloy and Its Tube Manufacturing by Short-flow Hot Extrusion.Cailiao Daobao/Materials Reports,33(8),2753-2758.
MLA	Ding, Yutian,et al."Study on Processing Map of Homogenized GH3625 Superalloy and Its Tube Manufacturing by Short-flow Hot Extrusion".Cailiao Daobao/Materials Reports 33.8(2019):2753-2758.