Pulsed plasma treatment of Ti-Al coatings produced by mechanical alloying method

被引：21
作者：
Romankov, S. [1 ]
Mamaeva, A.
Kaloshkin, S. D.
Komarov, S. V.
机构：
[1] Inst Phys & Technol, Alma Ata 050032, Kazakhstan
[2] Moscow State Inst Steel & Alloys, Moscow 119049, Russia
[3] Nippon Light Metal Co, Shizuoka, Japan
来源：
MATERIALS LETTERS | 2007年 / 61卷 / 30期
关键词：
coating; ion beam technology; metals and alloys;
D O I：
10.1016/j.matlet.2007.04.055
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
By means of the mechanical alloying method (MA), Ti-Al coatings were deposited on Ti substrates. Then, as-synthesized coatings were treated by pulsed argon plasma with energy up to 185 J/cm(2). Irradiation of the Ti-Al MA-coating with pulsed argon plasma beams with energy density higher than 135 J/cm(2) resulted in melting of the near-surface layer that in turn initiated the liquid-phase reaction between Ti and Al to form the Al3Ti compound. Melting led to smoothing of the coating structure. The coating microstructure and volume fraction of Al3Ti phase was conditioned by plasma energy. The thickness of the modified layer was several microns. Phase composition of plasma-treated coatings depended on its element composition. The plasma treatment of the Ti-Al-Si-C and Ti-Al-W-C coatings with energy of 150 J/cm(2) led to formation of Ti5Si3 and TiC along with Al3Ti compound. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：5288 / 5291
页数：4
相关论文
共 16 条
[1]   Improvement in the oxidation resistance of α2-Ti3Al by sputtering Al film and subsequent interdiffusion treatment [J].
Chu, MS ;
Wu, SK .
SURFACE & COATINGS TECHNOLOGY, 2004, 179 (2-3) :257-264
[2]   Microstructure of diffusion aluminide coatings on Ti-base alloy IMI-834 and their cyclic oxidation behaviour at 650°C [J].
Das, DK ;
Trivedi, SP .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 367 (1-2) :225-233
[3]   The tribological properties of co-deposited aluminium-titanium alloy coatings [J].
Hampshire, J ;
Kelly, PJ ;
Teer, DG .
THIN SOLID FILMS, 2004, 447 :392-398
[4]  
IBRAYEVV BM, 2003, J ENG THERMOPHYS, V12, P183
[5]   Reaction tn Al-Ti-C powders and its relation to the formation and stability of TiC in Al at high temperatures [J].
Kennedy, AR ;
Weston, DP ;
Jones, MI ;
Enel, C .
SCRIPTA MATERIALIA, 2000, 42 (12) :1187-1192
[6]   Pack cementation coatings on Ti3Al-Nb alloys to modify the high-temperature oxidation properties [J].
Koo, CH ;
Yu, TH .
SURFACE & COATINGS TECHNOLOGY, 2000, 126 (2-3) :171-180
[7]   Intermetallic Ti-Al coatings for protection of titanium alloys: oxidation and mechanical behavior [J].
Leyens, C ;
Peters, M ;
Kaysser, WA .
SURFACE & COATINGS TECHNOLOGY, 1997, 94-5 (1-3) :34-40
[8]   Microstructure, wear and high-temperature oxidation resistance of laser clad Ti5Si3/γ/TiSi composite coatings on γ-TiAl intermetallic alloy [J].
Liu, XB ;
Wang, HM .
SURFACE & COATINGS TECHNOLOGY, 2006, 200 (14-15) :4462-4470
[9]   Friction and wear behavior of Ti following laser surface alloying with Si, Al and Si plus Al [J].
Majumdar, JD ;
Mordike, BL ;
Manna, I .
WEAR, 2000, 242 (1-2) :18-27
[10]   Modification of the surface properties of materials by pulsed plasma beams [J].
Piekoszewski, J ;
Werner, Z ;
Langner, J ;
Walis, L .
SURFACE & COATINGS TECHNOLOGY, 1998, 106 (2-3) :228-233
12