Fatigue and Mechanical Behavior of Ti-6Al-4V Alloy with CrN and TiN Coating Deposited by Magnetic Filtered Cathodic Vacuum Arc Process
Abstract
:1. Introduction
2. Materials and Methods
2.1. Sample Preparation
2.2. Magnetic Filtered Cathoic Vacuum Arc (MFCVA) Setup
2.3. Coating Deposition and Characterization
2.3.1. Deposition and Characterization of Coating Thickness Uniformity on Dog-Bone Shape Sample
2.3.2. CrN and TiN Coating Deposition
2.3.3. Coating Characterization
2.4. Fatigue and Mechanical Tests
3. Results and Discussion
3.1. Thickness Uniformity of Coating on Dog-Bone Shape Samples
3.2. Characterization of the Coating
3.3. Fatigue Behavior and Discussion
3.4. Mechanical Properties and Discussion
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Coating Type | Step | Source | Bias Voltage | Arc Current | Duration | Nitrogen Flow Rate | Temperature |
---|---|---|---|---|---|---|---|
TiN coating | Ion implantation | Ti (99.95%) | 10 kV | – | 40 min | – | 400 °C |
Coating deposition | Ti (99.95%) | 250 V | 115 A | 70 min | 50 sccm | 500 °C |
Step | Source | Bias Voltage | Arc Current | Duration | Nitrogen Flow Rate | Temperature |
---|---|---|---|---|---|---|
Ion implantation | Cr (99.95%) | 8 kV | – | 50 min | – | 300 °C |
Buffer layer deposition | Cr (99.95%) | 40 V | 120 A | 40 min | – | 400 °C |
Coating deposition | Cr (99.95%) | 40 V | 120 A | 720 min | 18 sccm | 400 °C |
Step | Source | Bias Voltage | Arc Current | Duration | Nitrogen Flow Rate | Temperature |
---|---|---|---|---|---|---|
Ion implantation | Ti (99.95%) | 10 kV | – | 40 min | – | 400 °C |
Buffer layer | Ti (99.95%) | 250 V | 110 A | 30 min | – | 600 °C |
Coating deposition | Ti (99.95%) | 250 V | 110 A | 70 min | 35 sccm | 600 °C |
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Zhang, Z.; Chen, J.; He, G.; Yang, G. Fatigue and Mechanical Behavior of Ti-6Al-4V Alloy with CrN and TiN Coating Deposited by Magnetic Filtered Cathodic Vacuum Arc Process. Coatings 2019, 9, 689. https://doi.org/10.3390/coatings9100689
Zhang Z, Chen J, He G, Yang G. Fatigue and Mechanical Behavior of Ti-6Al-4V Alloy with CrN and TiN Coating Deposited by Magnetic Filtered Cathodic Vacuum Arc Process. Coatings. 2019; 9(10):689. https://doi.org/10.3390/coatings9100689
Chicago/Turabian StyleZhang, Zhaolu, Jiao Chen, Guangyu He, and Guanjun Yang. 2019. "Fatigue and Mechanical Behavior of Ti-6Al-4V Alloy with CrN and TiN Coating Deposited by Magnetic Filtered Cathodic Vacuum Arc Process" Coatings 9, no. 10: 689. https://doi.org/10.3390/coatings9100689