Jin Liu, Weixi Wang, Xu Cheng, Haibo Tang. Oxidation Behaviors of Ti60A Titanium Alloy Processed by Laser Additive Manufacturing[J]. Chinese Journal of Lasers, 2018, 45(7): 0702007
- Chinese Journal of Lasers
- Vol. 45, Issue 7, 0702007 (2018)
Fig. 1. Sampling methods of samples
Fig. 2. Microstructures of Ti60A alloys under different amplification factors. (a)(c) As-deposited; (b)(d) as-forged
Fig. 3. Surface morphologies of Ti60A alloys after 100 h continuous oxidation under different temperatures. (a) As-deposited, 600 ℃; (b) as-forged, 600 ℃; (c) as-deposited, 700 ℃; (d) as-forged, 700 ℃; (e) as-deposited, 800 ℃; (f) as-forged, 800 ℃
Fig. 4. Oxidation weight increase curves of Ti60A alloys under different temperatures
Fig. 5. XRD results of Ti60A alloy surfaces. (a) As-deposited; (b) as-forged
Fig. 6. Cross-sectional morphologies of oxidation layers of Ti60A alloys after 100 h continuous oxidation under different temperatures. (a) As-deposited, 600 ℃; (b) as-forged, 600 ℃; (c) as-deposited, 700 ℃; (d) as-forged, 700 ℃; (e) as-deposited, 800 ℃; (f) as-forged, 800 ℃
Fig. 7. EDS area scanning of oxidation layers of Ti60A alloys after 100 h continuous oxidation at 800 ℃. (a)(c) Scanning positions; (b)(d) scanning results
Fig. 8. EDS line scanning of oxidation layers of Ti60A alloys after 100 h continuous oxidation at 800 ℃. (a)(d) Scanning positions; (b)(e) scanning results of Al; (c)(f) scanning results of Ti
Fig. 9. Microhardness of Ti60A alloys after 100 h continuous oxidation under different temperatures. (a) 600 ℃; (b) 700 ℃; (c) 800 ℃
Fig. 10. Schematic of oxidation mechanism of Ti60A alloys after 100 h continuous oxidation at 800 ℃
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Table 1. Chemical compositions of Ti60A alloys (mass fraction, %)
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Table 2. Element compositions of oxidation layers of Ti60A alloys after 100 h continuous oxidation at 800 ℃ (atomic fraction, %)
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