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URN etd-1214118-124243 Statistics This thesis had been viewed 61 times. Download 0 times. Author Wei-che Huang Author's Email Address No Public. Department Materials Engineering Year 2018 Semester 1 Degree Ph.D. Type of Document Doctoral Dissertation Language zh-TW.Big5 Chinese Page Count 125 Title Study on corrosion resistance and wear resistance of CrAlSiN hard coatings improved by using cathodic arc deposition with pulse-current Keyword CAE deposition technology Pulse current technoloy Milling cutter Milling cutter Pulse current technoloy deposition technology CAE Abstract In order to improve the existing CAE deposition technology and use pulse current technology to develop CrAlSiN film, the paper presents an experimental report on the excellent performance of CrAlSiN coating. The cathode Arc deposition system is applied to CrAlSiN film on tungsten carbide and 304 stainless steel substrates. The CAE coating machine is equipped with a cathode arc evaporation source which can be fitted with a metal target with a diameter of 6 inches. The cathode arc evaporation source has the installation magnet, which has the function of stabilizing and controlling the arc point and increasing the movement rate of the arc point. The CrAlSiN film was designed to N2 the current of the cathode arc evaporation source, respectively (a) 90A control group, 90-120A Pulse Current, 90-150a pulse current and other three kinds of conditions and (b) 90A control group, 90-150a Pulse cycle 1ms, 3ms and other three conditions for ion coating CrAlSiN film, deposition time of 40 mins.The hardness value of the CrAlSiN system S1 sample is 3240Hv, the hardness value of the CrAlSiN system S2 sample is 3337Hv and S3 sample 4145Hv, Pulse current from 90/120A to 90/150A,cralsin coating hardness from S2 3337Hv increased to S3 sample 4145Hv, hardness increased sharply, and reached the maximum hardness value. CrAlSiN-90 of Rp is 6506642、CrAlSiN-1.0 of Rp is 16266053、CrAlSiN-3.0 of Rp is 23118408. The Cralsin with high pulse current power cycle deposition has higher RP value, which indicates that the corrosion resistance obtained in the experiment is better. The experimental results show that compared with the effective cutting length of the small milling cutter, the life of the S1 cutter increases by 75%, the life of the S2 knife increases by 165%, and the life of S3 knife increases by 117.5%. Based on the life of S1 knife, the life of S2 knife increases by 51% and the life of S3 knife increases by 24%. Advisor Committee Cheng-Hsun Hsu - advisor
Chiu, Liu-ho - co-chair
Chun-Yao Hsu - co-chair
chung-kwei Lin - co-chair
Ko-Shao, Chen - co-chair
Files Date of Defense 2018-12-03 Date of Submission 2018-12-14