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Chrome plating is a method used to protect the inside of a gun barrel from the severe environment (3,000 K and 4,000 MPa for 20 ms) created by the propellant gas when a cannon is fired. However, Crplated films have physical limitations, and the formation of hexavalent Cr compounds has a harmful effect on the environment. Ta-W alloy film has been explored as an alternative to Cr plating owing to the high melting point and corrosion resistance of Ta. However, obtaining pure α-phase Ta by sputtering is difficult, and the autofrettage effect in gun barrels limits the use of annealing. Therefore, a deposition method without the use of additional heat treatment is required to prepare Ta-W films with alpha-phase Ta. We explored the feasibility of depositing Ta-W alloy film inside a 2,800 mmlong stainless-steel tube using bipolar high-power impulse magnetron sputtering. A specially designed cylindrical magnetron sputtering equipment and a four-stage experimental process was employed to deposit a coating with uniform thickness (10.59%) throughout the tube, high adhesive strength (51.51 MPa), and pure alpha-phase Ta. The findings of this study are useful for deposition of Ta-W alloy films inside large-caliber canons.
목차
Abstract
1. Introduction
2. Experimental details
3. Results and discussion
4. Conclusion
References
참고문헌 (27)
참고문헌 신청
R. Hasenbein, Wear and erosion in large caliber gun barrels, 15 (2004).
M.J. Audino, Use of electroplated chromium in gun barrels, Defense Technical Information Center, (2006).
C.P. Mulligan, S.B. Smith, G.N. Vigilante, Characterization and comparison of magnetron sputtered and electroplated gun bore coatings, Journal of Pressure Vessel Technology, 128 (2006) 240–245.
W.S. de Rosset, M.J. Audino, Advanced gun barrel materials and manufacturing technology symposium-overview and perspective, Materials and Manufacturing Processes, 21 (2006) 571–572.
V. Balaram, U. Rambabu, M.R.P. Reddy, N.R. Munirathnam, S. Chatterjee, RoHS regulation: Challenges in the measurement of substances of concern in industrial products by different analytical techniques, MAPAN, 33 (2018) 329–346.
M.J. Audino, Use of electroplated chromium in gun barrels, Defense Technical Information Center, (2006).
C.P. Mulligan, S.B. Smith, G.N. Vigilante, Characterization and comparison of magnetron sputtered and electroplated gun bore coatings, Journal of Pressure Vessel Technology, 128 (2006) 240–245.
W.S. de Rosset, M.J. Audino, Advanced gun barrel materials and manufacturing technology symposium-overview and perspective, Materials and Manufacturing Processes, 21 (2006) 571–572.
V. Balaram, U. Rambabu, M.R.P. Reddy, N.R. Munirathnam, S. Chatterjee, RoHS regulation: Challenges in the measurement of substances of concern in industrial products by different analytical techniques, MAPAN, 33 (2018) 329–346.
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