Effects of Boron Element on the Grain Size of Ti-Al-Cr-Fe Alloys

被引：0
|
作者：
Wang Zhenguo [1 ]
Hui Songxiao [1 ]
Cai Haijiao [1 ]
机构：
[1] Grikin Adv Mat Co Ltd, State Key Lab Nonferrous Met & Proc, Gen Res Inst Nonferrous Met, Beijing 100220, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2015年 / 44卷 / 06期
关键词：
boron; titanium alloys; Ti-Al-Cr-Fe; refined grain; process cost; CAST TITANIUM-ALLOYS; MICROSTRUCTURE; TI-6AL-4V-0.1B; REFINEMENT;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of boron element on the grain size of Ti-Al-Cr-Fe system alloys were studied by optical microscope (OM), scanning electron microscope (SEM) and transmission electron microscope (TEM). The results indicate that the boron element could obviously refine the grain size of titanium alloys. This is mainly because of the TiB phase precipitated during the process of melting and solidification, which could refine the forging microstructure and pin grain boundary, and thus impede the original beta grains growing during the hot working and heat treatment process. Due to TiB phase, the heating of deformation could be reduced, and then the cost of process will be lowered. As a result, the grain size of Ti-3Al-3.7Cr-2.0Fe-0.1B alloy is smaller than that of the Ti-3Al-3.7Cr-2.0Fe alloy. And after solid solution at the same conditions, the grain size of Ti-3Al-3.7Cr-2.0Fe-0.1B alloy is about 69 similar to 88 mu m, 52.7%similar to 67.0% of that of Ti-3Al-3.7Cr-2.0Fe alloy.
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页码：1402 / 1406
页数：5
相关论文
共 19 条
  • [1] Effects of boron on microstructure in cast titanium alloys
    Bermingham, M. J.
    McDonald, S. D.
    Nogita, K.
    John, D. H. St.
    Dargusch, M. S.
    [J]. SCRIPTA MATERIALIA, 2008, 59 (05) : 538 - 541
  • [2] TiBw-reinforced Ti composites:: Processing, properties, application prospects, and research needs
    Chandran, KSR
    Panda, KB
    Sahay, SS
    [J]. JOM, 2004, 56 (05) : 42 - 48
  • [3] Chandrasekar P, 2008, INDIAN SOC SURF SCI, P57
  • [4] Han Mingchen, 2007, RARE METALS LETT, V26, P44
  • [5] Effect of composition on grain refinement in TiAl-based alloys
    Hu, D
    [J]. INTERMETALLICS, 2001, 9 (12) : 1037 - 1043
  • [6] Hu Zhang, 2001, J MAT ENG, P36
  • [7] Jiang ZG, 2007, ACTA METALL SIN, V43, P487
  • [8] [李邦盛 Li Bangsheng], 2005, [材料研究学报, Chinese Journal of Materials Research], V19, P375
  • [9] Li ZX, 2001, RARE METAL MAT ENG, V30, P19
  • [10] Luo H, 2010, DEV APPL MAT, V25, P77
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