Recycling of waste Ti machining chips by planetary milling: Generation of Ti powder and development of in situ TiC reinforced Ti-TiC composite powder mixture

被引:24
作者
Shial, S. R. [1 ]
Masanta, M. [1 ]
Chaira, D. [2 ]
机构
[1] NIT Rourkela, Dept Mech Engn, Rourkela, Odisha, India
[2] NIT Rourkela, Dept Met & Mat Engn, Rourkela, Odisha, India
关键词
Ti chips; Ti-TiC composite; planetary milling; SEM; TEM; ALLOY; TITANIUM; MICROSTRUCTURE; HYDROGENATION; TI-6AL-4V; SCRAP;
D O I
10.1016/j.powtec.2018.01.080
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The present paper reports the synthesis of in-situ TiC reinforced Ti-TiC composite powder mixture from waste Ti chips by high energy planetary milling. First, we synthesize Ti powder from waste Ti chips by planetary milling for 2.5 h and then Ti and graphite powder mixtures (Ti/C weight ratios of 100/6 and 48/12) are milled for 12 h to obtain in-situ TiC reinforced Ti-TiC composite. The both milled Ti and Ti-TiC composite powder mixtures are characterized by XRD, SEM, FESEM and TEM. It has been found that Ti powder of size 5-10 mu m with crystal size of 10-20 nm are obtained after 2.5 h of milling. Faster rate of formation of TiC is evident from XRD spectra at high Ti content (Ti/C weight ratio = 100/6) than low Ti content (Ti/C weight ratio = 48/12). The contamination issue during synthesis of Ti powder and also during milling of Ti and graphite are discussed. It has also been observed that rate of oxidation reduces during milling of Ti + graphite than milling of pure Ti chips as graphite forms a layer around Ti particle and prevents oxidation. An average particle size of 5 gm is obtained after milling Ti + C powder mixture for 12 h (Ti/C weight ratio 48/12), whereas average size of 15 gm is obtained for Ti/C weight ratio of 100/6. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:232 / 240
页数:9
相关论文
共 23 条
[1]   Synthesis and characterization of silicon carbide by reaction milling in a dual-drive planetary mill [J].
Chaira, D. ;
Mishra, B. K. ;
Sangal, S. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 460 :111-120
[2]   Efficient synthesis and characterization of iron carbide powder by reaction milling [J].
Chaira, D. ;
Mishra, B. K. ;
Sangal, S. .
POWDER TECHNOLOGY, 2009, 191 (1-2) :149-154
[3]  
Cheng XK, 2017, INT C ELECTR MACH SY
[4]   Mechanochemistry of Ti-C powder mixtures [J].
Delogu, Francesco ;
Takacs, Laszlo .
ACTA MATERIALIA, 2014, 80 :435-444
[5]   Effects of disc milling parameters on the physical properties and microstructural characteristics of Ti6Al4V powders [J].
Dikici, Tuncay ;
Sutcu, Mucahit .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 723 :395-400
[6]   Biomedical applications of titanium and its alloys [J].
Elias, C. N. ;
Lima, J. H. C. ;
Valiev, R. ;
Meyers, M. A. .
JOM, 2008, 60 (03) :46-49
[7]   Characterization of titanium alloy Ti-6Al-4V for chemical, marine and industrial applications [J].
Gurrappa, I .
MATERIALS CHARACTERIZATION, 2003, 51 (2-3) :131-139
[8]   Effects of additives on mechanical milling and hydrogenation of magnesium powders [J].
Güvendiren, M ;
Baybörü, E ;
Öztürk, T .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2004, 29 (05) :491-496
[9]  
Hatta Y., 2005, US Patent no, Patent No. [6918942 B2, 6918942B2]
[10]   Powder metallurgy Ti-TiC metal matrix composites prepared by in situ reactive processing of Ti-VGCFs system [J].
Li, Shufeng ;
Sun, Bin ;
Imai, Hisashi ;
Kondoh, Katsuyoshi .
CARBON, 2013, 61 :216-228