Influence of Hastelloy’s Cathodic Cage Plasma Deposition on Corrosion Resistance of AISI 304 Stainless Steel and of AISI D6 Tool Steel

Abstract

AISI D6 tool steel and AISI 304 stainless steel are among the most widely used material in the industry. However, this application field can still be expanded through the coatings deposition. In this regard, the objective of this work was to evaluate the impact of coatings application by cathodic cage technique using Hastelloy's cathodic cage, on corrosion resistance of these steels. Two treatment temperatures were compared. The samples were characterized by Optical Microscopy, Scanning Electron Microscopy, Energy Dispersive Spectroscopy, X-Ray Diffraction with the application of the Rietveld routine and corrosion test. The results showed the formation of multiphase layers that contributed to corrosion potentials reduction for treatments at 400 °C, being more effective when applied on AISI D6. It was observed that the corrosion resistance is influenced by the temperature, which was attributed to the precipitation of chromium nitride and iron oxide at 450 ºC.

Duplex treatment with Hastelloy cage on AISI 5160 steel cutting tools

“…A DC source with a maximum voltage of 1200 V was used to produce plasma in an atmosphere composed of nitrogen and hydrogen/argon. The Hastelloy cathodic cage (composition %wt: 47.30 Ni, 22.00 Cr, 9.00 Mo, 1.50 Co, 18.50 Fe, 0.50 Mn, 0.60 W, and 0.10 C.) used in the CCPN treatments was manufactured from a plate of the steel with 2 mm thick [22]. The cylinder formed contains circular holes with a diameter of 8 mm and a distance between the centres of the holes equal to 9.2 mm.…”

“…TiN deposition [18,19], TiO 2 [20], and CrN [21] have been extensively addressed in several studies. However, there are not many studies reporting the use of Hastelloy's cage [22].…”

Mechanical and Wear Properties of 42CrMo Steel by Plasma Nitriding assisted Hollow Cathode Ion Source

“…As the cathode of the metal screen is bombarded by ions, iron particles are continuously sputtered and deposited on the workpiece, and nitrogen atoms diffuse into the inner part of the suspended workpiece to avoid the above problems during CPN treatment. Since the plasma is formed by the glow discharge generated by the active screen, the workpiece should be closer to the active screen [17][18][19] .…”