Experimental study on superficial coat of gears of nitrided 32Cr2MoV coated with TiN film by multi-arc ion plating

2007 ◽  
Vol 20 (04) ◽  
pp. 52 ◽  
Author(s):  
Hui LI
2014 ◽  
Vol 887-888 ◽  
pp. 1096-1100 ◽  
Author(s):  
Guo Dong Sun ◽  
Deng Liang Yi ◽  
Chang Hua Liu

TiN and TiAlN films have been coated on the surface of tool materials by various methods for the life-time extension of tool. In this work, for the improvement of hardness and adhesion of coating to SKD61 substrate, radical nitriding (RN) of substrate was carried out at 450°C for 5 hours in ammonia gas pressure of 2.7×103 Pa. The results showed that TiN and TiAlN coatings were distributed uniformly on the SKD 61 substrate. And the film thickness was up to 4 μm, which showed so high deposition efficiency (~ 66.7 nm/min) of arc ion plating at this typical process condition. For both coatings, the TiN phases could be detected and the (111) was dominant crystallite grown orientation. The AlN crystallite structure could be detected as expected in TiAlN film. The critical load of TiN film (22.36 N) was slightly smaller than that of TiAlN film (23.88 N). With increasing the load during scratch test, the friction coefficient of TiN film rose quickly, but friction coefficient of TiAlN had a little change, even decreased slightly.


2013 ◽  
Vol 706-708 ◽  
pp. 180-183
Author(s):  
Jie Wang ◽  
Shi Hang Jiang ◽  
Juan Juan Wang

Depositing TiN Film on the surface of 4Cr5MoSiV1 with multi-arc ion plating technology method. And 350°C, 450°C, 550°C and 650 °C short oxidation test and 550 °C cyclic oxidation test. By scanning electron microscopy (SEM) and electron spectrometry (EDS) to analysis micro-structure and phase structure of test samples, study TiN film on oxidation resistance, and utilize indentation method to measure mechanical properties. Results show: In a short time under oxidizing conditions, at 550 °C the TiN film still has a good oxidation resistance. The film still have a sufficient bonding strength below 600 °C.


1997 ◽  
Vol 48 (1) ◽  
pp. 31-35
Author(s):  
Toshihiko TAKEDA ◽  
Yoshiaki MORO ◽  
Shigeru ITO ◽  
Hisami YUMOTO ◽  
Kazuo AKASHI

2014 ◽  
Vol 789 ◽  
pp. 449-454 ◽  
Author(s):  
Li Jun Yang ◽  
Ze Hui Zhang ◽  
Xin An Dang ◽  
Lin Li

Ring is one of the major textile spinning machine consumable part, it has an important influence on yarn quality and cost. Ring of domestic cotton spinning enterprises generally has poor hardness, bad accuracy, not durable and difficult to guarantee the quality of the yarn, foreign ring has excellent performance, but it is too expensive, so it is difficult to widely used in China[1]. Vacuum arc ion plating technology has a wide range of applications in the aerospace, automobile, mold, tool, electronics and other fields [2-3]. TiN film which is prepared by arc ion plating technology has been widely used because of the TiN film has poor oxidation resistance and wear resistance at high temperatures, so the ternary films are developed on TiN film, such as TiAlN [4], TiCN etc. Traveller circle in the ring on the slide to produce large amounts of heat, it makes the ring surface temperature reach 400°C. When higher than 400°C, the TiCN film failure, therefore, ring should not be plated on the TiCN films. While TiAlN film oxidation temperature reaches 800°C. In HSS twist drill, depositing of TiAlN film can improve the service life more than four times [5]. Studies [6-8] have found that using pulsed laser deposition and chemical vapor deposition technique to prepare TiAlCN film, its wear resistance, high temperature stability is better. Pulsed laser deposition is mainly used in laboratory research. It is difficult to deposit a large area uniform film. Chemical vapor deposition of deposition rate is less than the arc ion plating, and produces lots of waste gas, leading to the environment is polluted. Arc ion plating technology can deposit the uniform films of large area with high deposition rate and deposition with no environmental pollution, therefore, this study, by means of vacuum arc ion plating technology to prepare high-precision, long-life and low-cost domestic cotton spinning ring. In order to obtain the best film process parameters, the performance of film is investigated at different bias and arc current.


2010 ◽  
Vol 24 (15n16) ◽  
pp. 3095-3100 ◽  
Author(s):  
SATOSHI FUKUI ◽  
DAISUKE YONEKURA ◽  
RI-ICHI MURAKAMI

The surface properties like roughness etc. strongly influence the fatigue strength of high-tensile steel. To investigate the effect of surface condition and TiN coating on the fatigue strength of high-strength steel, four-point bending fatigue tests were carried out for martensitic stainless steel with TiN film coated using arc ion plating (AIP) method. This study, using samples that had been polished under several size of grind particle, examines the influence of pre-coating treatment on fatigue properties. A 2-µm-thick TiN film was deposited onto the substrate under three kinds of polishing condition. The difference of the hardness originated in the residual stress or thin deformation layer where the difference of the size of grinding particle of the surface polishing. And it leads the transformation of the interface of the substrate and the TiN film and improves fatigue limit.


2015 ◽  
Vol 15 (9) ◽  
pp. 7357-7362 ◽  
Author(s):  
W. C. Lang ◽  
B. Gao ◽  
H. Du ◽  
J. Q. Xiao ◽  
M. X. Li ◽  
...  
Keyword(s):  

1999 ◽  
Vol 343-344 ◽  
pp. 257-260 ◽  
Author(s):  
Tatsuya Matsue ◽  
Takao Hanabusa ◽  
Yasuhiro Miki ◽  
Kazuya Kusaka ◽  
Eiji Maitani

1999 ◽  
Vol 48 (7) ◽  
pp. 699-704 ◽  
Author(s):  
Tatsuya MATSUE ◽  
Takao HANABUSA ◽  
Yasukazu IKEUCHI ◽  
Yasuhiro MIKI ◽  
Eiji MAITANI

2004 ◽  
Vol 2004.7 (0) ◽  
pp. 279-280
Author(s):  
Yuji TAKAGI ◽  
Daisuke MIYAKE ◽  
Daisuke YONEKURA ◽  
Satoshi FUKUI ◽  
Ri-ichi MURAKAMI

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