Study on Processing Map of Homogenized GH3625 Superalloy and Its Tube Manufacturing by Short-flow Hot Extrusion | |
Ding, Yutian1,3; Chen, Jianjun1,3; Li, Haifeng2; Gao, Yubi1,3; Xu, Jiayu1,3; Ma, Yuanjun1,3 | |
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. |
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