EFFECTS OF INTERSTITAL IMPURITIES AND THEIR DISTRIBUTION ON EMBRITTLEMENT IN POWDER METALLURGY MOLYBDENUM.

被引：0
|
作者：
Zuo Tieyong
Zhou Meiling
Wang Zhanyi
机构：
来源：
Solid State Ionics | 1982年 / 01期
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The fracture surfaces of sintered billets and rolled plates of powder metallurgy molybdenum were studied by scanning electron microscopy and auger electron spectroscopy. It is shown that the segregation of interstital impurities, oxygen, carbon, and nitrogen to grain boundaries is the primary cause of room-temperature embrittlement in powder metallurgy molybdenum. The grain size, as well as the amount of deformation and annealing procedure, has direct effects on concentration and distribution of interstital impurities at grain boundaries, thus having obvious effects on ductility of molybdenum billets and plates.
引用
收藏
页码：47 / 54
相关论文
共 50 条
  • [1] Causes of Intergranular Embrittlement of Molybdenum.
    Parshikov, V.G.
    Leitman, M.S.
    Shul'ga, A.V.
    Tsvetnye Metally, 1978, (09): : 91 - 92
  • [2] Study of the Plasticity of Powder-Metallurgical Molybdenum.
    Kozlov, G.D.
    Ural'skii, V.I.
    Trunin, O.V.
    Sein, V.I.
    1600,
  • [3] Chloride Impurities in Titanium Powder Metallurgy-A Review
    Low, R. J.
    Qian, M.
    Schaffer, G. B.
    TI-2011: PROCEEDINGS OF THE 12TH WORLD CONFERENCE ON TITANIUM, VOL III, 2012, : 1770 - 1774
  • [4] POWDER-METALLURGY MOLYBDENUM - INFLUENCE OF POWDER REDUCTION PROCESSES ON PROPERTIES
    TUOMINEN, SM
    CARPENTER, KH
    JOURNAL OF METALS, 1980, 32 (01): : 23 - 26
  • [5] Study on Dynamic Recrystallization Behavior of Powder Metallurgy Molybdenum
    Xie Hanfang
    Li Fuguo
    Wang Yufeng
    Fu Jingbo
    RARE METAL MATERIALS AND ENGINEERING, 2011, 40 (04) : 669 - 672
  • [6] The intensity distribution of the general and characteristic x-radiation from molybdenum.
    Treloar, LRG
    PHILOSOPHICAL MAGAZINE, 1928, 6 (39): : 1008 - 1019
  • [7] EFFECT OF IMPURITIES ON THE WELDABILITY OF POWDER-METALLURGY, ELECTRON-BEAM MELTED AND ARC-MELTED MOLYBDENUM AND ITS ALLOYS
    MORITO, F
    JOURNAL OF MATERIALS SCIENCE, 1989, 24 (09) : 3403 - 3410
  • [8] Effects of rolling temperature and reduction on microstructure and tensile properties of thick plate, powder metallurgy molybdenum
    Zwonitzer, SA
    Rozak, GA
    Lewandowski, JJ
    MOLYBDENUM AND MOLYBDENUM ALLOYS, 1998, : 111 - 124
  • [9] MECHANICAL PROPERTIES OF ARC-CAST AND POWDER METALLURGY MOLYBDENUM
    BECHTOLD, JH
    SCOTT, H
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1951, 98 (12) : 495 - 504
  • [10] RHENIUM EFFECTS ON THE DUCTILITY OF ELECTRON-BEAM WELDED JOINTS OF MOLYBDENUM.
    Hiraoka, Yutaka
    Irie, Hirosada
    Okada, Masatoshi
    Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques, 1985, 76 (11): : 755 - 759
12345