Application of the plasma transferred arc process to form a thick oxide layer on an aluminium alloy surface

1997 ◽  
Vol 11 (4) ◽  
pp. 328-332 ◽  
Author(s):  
T Hashimoto ◽  
K Nakata ◽  
F Matsuda
2010 ◽  
Vol 97-101 ◽  
pp. 1502-1505
Author(s):  
Shi Qiang Qian ◽  
Wei Wang

Using a combination of high speed jet electrodeposition and plasma transferred arc (PTA) quenching, a nano-TiN/Ni composite coating on 7005 aluminium alloy can be produced. The microstructure, microhardness, friction coefficient and corrosion potential Ecorr of PTA treated specimens were investigated. The results showed that a rapidly solidified microstructure consisting of the uniformly distributed TiN phase and fine Al3Ni2 intermetallic phase was in PTA treated specimens. The results also showed that the composite coating PTA treated has an average microhardness of approximately 800 HV. The friction coefficient of PTA treated specimens (oscillated around 0.25) is considerably lower than that of TiN/Ni composite coating (oscillated around 0.35). The PTA treated specimen had the lowest corrosion current density Icorr as well as the highest corrosion potential Ecorr and showed an improved corrosion resistance compared to 7005 aluminium alloy as well as TiN/Ni composite coating.


2017 ◽  
Vol 23 (1) ◽  
pp. 30-35
Author(s):  
L.A. Bulavin ◽  
◽  
V.Ya. Chernyak ◽  
L.Yu. Vergun ◽  
Yu.F. Zabashta ◽  
...  

2012 ◽  
Vol 54 (11-12) ◽  
pp. 793-799 ◽  
Author(s):  
Serkan Islak ◽  
Özkan Eski ◽  
Soner Buytoz ◽  
Muzaffer Karagöz ◽  
Joseph Stokes

Alloy Digest ◽  
1995 ◽  
Vol 44 (12) ◽  

Abstract COLMONOY No. 83 PTA is a nickel-base hard surfacing alloy containing tungsten carbide. The application method is plasma transferred arc and the application is designed to protect extrusion screws. This datasheet provides information on composition, physical properties, microstructure, hardness, tensile properties, and compressive strength. It also includes information on wear resistance as well as machining and powder metal forms. Filing Code: Ni-493. Producer or source: Wall Colmonoy Corporation.


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