SLOW COOLING TREATMENT OF HIGH-ALLOYED SUPERALLOY.

被引：1
|
作者：
Lu, X. D. [1 ]
Du, J. H. [1 ]
Deng, Q. [1 ]
Zhong, Z. Y. [1 ]
机构：
[1] Cent Iron & Steel Res Inst, Dept Superalloy, Beijing 100081, Peoples R China
来源：
NEW MATERIALS AND PROCESSES, PTS 1-3 | 2012年 / 476-478卷
关键词：
Nickel base superalloy; High-alloyed; Slow cooling treatment; Workability; HOT DEFORMATION-BEHAVIOR; GH4742; SUPERALLOY; MICROSTRUCTURE;
D O I：
10.4028/www.scientific.net/AMR.476-478.98
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The very poor hot workability of high-alloyed GH4742 superalloy is represented in the aspects of very narrow available deformation temperature range, high deformation-resistant force and poor ductility. In this paper, a special heat treatment to change the ingot microstructure is proposed to improve the hot workability of the GH4742 superalloy. The gamma' phase with a appropriate size and morphology and tortuous grain boundary were obtained by slow cooling in the gamma+gamma'two phases region after solution treatment. Modified microstructure induces that the hot deformation flow stress of GH4742 superalloy was decreased effectively and hot deformation plasticity was increased obviously.
引用
收藏
页码：98 / 104
页数：7
相关论文
共 50 条
  • [41] Examination of the oxidation resistance of high-alloyed tool steels at elevated temperatures
    Chaliampalias, D.
    Vourlias, G.
    Pavlidou, E.
    Stergioudis, G.
    Chrissafis, K.
    APPLIED SURFACE SCIENCE, 2009, 255 (12) : 6244 - 6251
  • [42] Inhibition of Carbide Growth by Sr in High-Alloyed White Cast Iron
    Dojka, Malwina
    Dojka, Rafal
    MATERIALS, 2022, 15 (04)
  • [43] Effect of slow cooling treatment on hot deformation behavior of GH4742 superalloy
    Lu, X. D.
    Du, J. H.
    Deng, Q.
    Zhong, Z. Y.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 486 (1-2) : 195 - 198
  • [44] Effect of slow cooling treatment on microstructure of difficult deformation GH4742 superalloy
    Lu, X. D.
    Deng, Q.
    Du, J. H.
    Qu, J. L.
    Zhuang, J. Y.
    Zhong, Z. Y.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 477 (1-2) : 100 - 103
  • [45] On the mechanism of a hydrogen peak of internal friction in high-alloyed FCC iron
    Asano, S
    Usui, M
    Shimada, Y
    SCRIPTA MATERIALIA, 1998, 38 (12) : 1769 - 1774
  • [46] Features of Contact Interaction in Cutting High-Alloyed Steels with Carbide Tool
    Lipatov, A. A.
    Tchigirinsky, J. L.
    Mang Trung Pham
    PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON INDUSTRIAL ENGINEERING, ICIE 2019, VOL II, 2020, : 1185 - 1191
  • [47] Understanding carbide evolution and surface chemistry during deep cryogenic treatment in high-alloyed ferrous alloy
    Jovicevic-Klug, Patricia
    Tegg, Levi
    Jovicevic-Klug, Matic
    Parmar, Rahul
    Amati, Matteo
    Gregoratti, Luca
    Almasy, Laszlo
    Cairney, Julie M.
    Podgornik, Bojan
    APPLIED SURFACE SCIENCE, 2023, 610
  • [48] Mini-thixoforming of High-Alloyed CPM REX 121 Steel
    Aisman, David
    Rubesova, Katerina
    Mikmekova, Sarka
    ADVANCES IN MATERIALS AND MATERIALS PROCESSING IV, PTS 1 AND 2, 2014, 887-888 : 1156 - +
  • [49] Welding of High-Alloyed Metals Used for Manufacture of Chemical Equipment.
    Becker, Horst
    Hoffmann, Theo
    Schweissen und Schneiden/Welding and Cutting, 1980, 32 (07): : 251 - 254
  • [50] PHASE CHANGES OF HIGH-ALLOYED MATERIALS AFTER LONG-TERM ANNEALING
    Kraus, M.
    NEW METHODS OF DAMAGE AND FAILURE ANALYSIS OF STRUCTURAL PARTS, 2010, 2010, : 387 - 394
12345