Effect of forging temperature on microstructure and mechanical properties of in situ (TiB plus TiC)/Ti composites

被引：6
作者：
Ma, Feng-cang
Lu, Wei-jie
Qin, Ji-ning
Zhang, Di [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200030, Peoples R China
[2] Henan Univ Sci & Technol, Luoyang 471039, Peoples R China
来源：
MATERIALS TRANSACTIONS | 2006年 / 47卷 / 07期
关键词：
in situ titanium matrix composites; forging temperature; microstructure; mechanical properties;
D O I：
10.2320/matertrans.47.1750
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, 5 vol% (TiB+TiC)/Ti-1100(Ti-6Al-2.75Sn-4Zr-0.4Mo-0.45Si) composite were fabricated using in situ technologies between Ti and B4C powders. Phase identification was carried out by X-ray diffraction. beta transus temperature of the composite was measured by metallographic techniques. The composite after ingot breakdown was forged in various temperature ranges. Microstructure of the composite after forging at various temperatures was studied by optical microscopy (OM). Mechanical properties of the composite after forging at various temperatures were evaluated by tensile tests at 873 K. It was found that the transus temperature of the composites was around 100 K higher than that of monolithic Ti-1100 alloy. Different microstructures were obtained after forging at different temperatures. The composite with different microstructures offered different mechanical properties, which was shown in the tensile tests.
引用
收藏
页码：1750 / 1754
页数：5
相关论文
共 15 条
[1]  
Andrady Anthony L., 1993, Journal of Environmental Polymer Degradation, V1, P31, DOI 10.1007/BF01457651
[2]  
Bania P.J., 1985, Titan. Sci. Technol, P2371
[3]  
Boyer R.R., 1994, MAT PROPERTIES HDB, P488
[4]  
CHO W, 1989, P 6 WORLD C TIT, P187
[5]   HREM study of TiB/Ti interfaces in a Ti-TiB-TiC in situ composite [J].
Lu, WJ ;
Zhang, D ;
Zhang, XN ;
Wu, RJ ;
Sakata, T ;
Mori, H .
SCRIPTA MATERIALIA, 2001, 44 (07) :1069-1075
[6]   Microstructure and tensile properties of in situ (TiB+TiC)/Ti6242 (TiB:TiC=1:1) composites prepared by common casting technique [J].
Lu, WJ ;
Zhang, D ;
Zhang, XN ;
Wu, RJ ;
Sakata, T ;
Mori, H .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 311 (1-2) :142-150
[7]  
LU WJ, 1999, J MAT ENG, V8, P9
[8]  
LUTJERING G, 1993, TITANIUM '92: SCIENCE AND TECHNOLOGY, VOLS 1-3, P1635
[9]   Microstructure and formation mechanism of in situ synthesized TiC/Ti surface MMC on Ti-6Al-4V by laser cladding [J].
Man, HC ;
Zhang, S ;
Cheng, FT ;
Yue, TM .
SCRIPTA MATERIALIA, 2001, 44 (12) :2801-2807
[10]  
Ranganath S, 1997, J MATER SCI, V32, P1
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