Microstructural characteristic of NiTi coating on stainless steel by plasma transferred arc process
作者： Serkan Ozel , Bulent Kurt , Ilyas Somunkiran , Nuri Orhan
DOI: 10.1016/J.SURFCOAT.2008.01.006
关键词: Plasma arc welding 、 Metallurgy 、 Microstructure 、 Indentation hardness 、 Nickel titanium 、 Layer (electronics) 、 Austenitic stainless steel 、 Powder mixture 、 Materials science 、 Coating
摘要: Abstract In this study, NiTi powder mixture was coated on the surface of an austenitic stainless steel (AISI 304) by plasma transferred arc (PTA). Coating carried out using 80, 90, 100 A current density under Ar atmosphere. layer and interface were examined with SEM, EDX, XRD analysis micro hardness test. Thickness coating increased density. No cracks or pores detected in interface. Higher densities caused a poor alloy. Secondary phases such as Cr 2 Fe 7 Ni, Ni 3 Ti also formed layer.
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