Study of physical properties of (Al – Ni ) coating layers Prepared by thermal spray process by Flame | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 17, Issue 3, September 2012, Pages 162-165 | ||
| Authors | ||
| Lutfi. A Mahmood; Abdul Kareem. D Ali; Mohammed .A Ab | ||
| Abstract | ||
| Flame thermal spray process have been used of (Ni – Al) powders on stainless steel ( 316L ) with diameter 20mm and thickeness 3mm after roughing by threading method.These samples are then cleaned by eathanol Then we studied the effect of spray distance , which considered to be the importance parameters spray on mechanical properties like porosity, hardness and the microstructure .Flame spraying process has been done with different distances (10,15,20,25,30)cm . we studied the properties after spraying and after heat treatment . Heat treatment have been done at Tembereture 700 Cº for one hour at Furance with out vacuum . The results show that the best parameters in the thermal spray process by flame gave us good properties achieved successfully if the distance spray was (15cm). After heat treatment the porosity is decreased and the hardness is increased | ||
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