Effect of second phase on grain growth of spray formed superalloy GH742y

被引：3
|
作者：
Xu Wenyong [1 ]
Li Zhou [1 ]
Yuan Hua [1 ]
Zhang Guoqing [1 ]
机构：
[1] Beijing Inst Aeronaut Mat, Natl Key Lab Sci & Technol Adv High Temp Struct M, Beijing 100095, Peoples R China
来源：
RARE METALS | 2011年 / 30卷
基金：
中国国家自然科学基金;
关键词：
superalloy; spray forming; grain growth; second phase; MICROSTRUCTURE;
D O I：
10.1007/s12598-011-0310-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of solution treatment on grain size and pinning effects of the second phase on grain growth in spray formed superalloy GH742y were investigated by OM, SEM, TEM, DSC, phase extraction and XRD. The results indicates that the limiting ultimate grain size is about 40 mu m. The equilibrium gamma' solvus temperature is determined to be about 1130 degrees C. Nb- and Ti-rich carbonitrides have good thermal-stability and could hardly change in their amount, size and morphology after solution treatment at 1250 degrees C solution treatment for 4 h. They inhibit the grain boundary migration and grain growth, by pinning the grain boundary.
引用
收藏
页码：392 / 395
页数：4
相关论文
共 50 条
  • [21] ON THE EFFECT OF SECOND-PHASE PARTICLES ON GRAIN GROWTH.
    Hellman, Per
    Hillert, Mats
    Scandinavian Journal of Metallurgy, 1975, 4 (05): : 211 - 219
  • [22] Study on grain growth of hot continuous rolled GH4169 superalloy
    Donghua University, Shanghai 201620, China
    不详
    Xiyou Jinshu Cailiao Yu Gongcheng, 2012, 5 (877-880):
  • [23] Study on Grain Growth of Hot Continuous Rolled GH4169 Superalloy
    Kong Yonghua
    Hu Huabin
    Li Dongfang
    Chen Guosheng
    Zhu Shigen
    RARE METAL MATERIALS AND ENGINEERING, 2012, 41 (05) : 877 - 880
  • [24] Growth kinetics of γ′ phase of spray formed Ni-base superalloy during short-term ageing
    Harbin Institute of Technology, Harbin 150001, China
    不详
    不详
    Xiyou Jinshu Cailiao Yu Gongcheng, 2007, 7 (1205-1209):
  • [25] Growth kinetics of γ′ phase of spray formed Ni-base superalloy during short-term ageing
    Kang Fuwei
    Sun Jianfei
    Zhang Guoqing
    Li Zhou
    Ao Hongfeng
    Shen Jun
    RARE METAL MATERIALS AND ENGINEERING, 2007, 36 (07) : 1205 - 1209
  • [26] Effect of hot isostatic pressing on porosity and properties of spray formed superalloy
    Beijing Inst of Aeronautical, Materials, Beijing, China
    Cailiao Gongcheng, 7 (24-25, 17):
  • [27] Phase transformations and grain growth behaviors in superalloy 718
    Ruan, J. J.
    Ueshima, N.
    Oikawa, K.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 737 : 83 - 91
  • [28] Fatigue crack growth behavior of spray formed GH738 alloy
    Sun, J.-F. (jfsun@hit.edu.cn), 1600, Beijing Institute of Aeronautical Materials (BIAM)
  • [29] EFFECT OF SECOND-PHASE PARTICLES ON GRAIN GROWTH IN CALCITE.
    Olgaard, David L.
    Evans, Brian
    Journal of the American Ceramic Society, 1986, 69 (11)
  • [30] Effect of second phase precipitation on limiting grain growth in alloy 718
    Muralidharan, G
    Thompson, RG
    SCRIPTA MATERIALIA, 1997, 36 (07) : 755 - 761
12345