Microstructure, mechanical and erosion wear analysis of post heat treated iron alloy based coating with varying chromium

Self Cite

Iron alloy based amorphous coating materials have enormous potential in wide range of applications such as petrochemical, aerospace, ocean, and electronic communications due to their better mechanical properties, chemical properties, magnetic properties and tribological properties. The industrial applications of coating are increasing rapidly due to many advancements in the material development and coating deposition techniques. The present paper reviewed the recent progresses in deposition technologies, development of new high order alloys and composite based coating materials. In this regard, change in microstructure, elemental composition, mechanical and tribological properties on performance of iron alloy based coating properties were presented. It can be concluded that the tribological properties of coating is dependent on pre-coating and post-coating factors. Pre-coating factors include coating deposition techniques, coating layer thickness and coating parameters such as spray distance, oxygen flow rate etc. Post-coating factors include microstructure, hardness, fracture toughness and adhesion strength. Therefore, multi-criteria decision making techniques can be the best approach to find the optimum formulation of coating materials to achieve desired set of objectives under the conflicting criteria.

Section: Effect Of Mechanical Properties On Performance Of High Veloc...mentioning

confidence: 99%

Microstructure, mechanical and tribological properties of high velocity oxy fuel thermal spray coating: A review

Sharma

Das

Kumar³

2023

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“…Iron powder has been widely used in almost every application including domestic use, coating of parts, automotive parts, agricultural equipment, electronic, electrical devices, etc. [8][9][10][11]. The hardness of the compacts increases with increase in pressure [12].…”

Section: Introductionmentioning

confidence: 99%

Tribological behavior of sintered electrolytic iron‐zinc stearate added compacts

Kumar

Vettivel

2023

Self Cite

Powder metallurgy is an effective method to give near net shape to powder particles. In this paper, the influence of powder particle size, lubricant and compaction load on hardness and wear loss has been investigated as it influences the compact. Electrolytic iron powder (250 mesh to 300 mesh and 300 mesh to 350 mesh) with zinc stearate (0 weight % to 2 weight %) was used for preparing the samples. Green samples were prepared by cold compaction process at different loads (400 kN, 450 kN and 500 kN). Pre-sintering was done at 550 °C. Taguchi's (L 18 ) mixed level model was used to develop the regression equation for hardness and wear loss. The maximum hardness of 79 HRB was achieved with 300 mesh to 350 mesh particle size and 500 kN compaction load. Minimum wear volume loss was observed with samples having composition of 250 mesh to 300 mesh size electrolytic iron powder at 500 kN compaction load and 1 weight % lubricant content.

“…Therefore, refining the chromium precipitated phases can further increase the copper alloy's strength [11]. Chromium plays an important role in the mechanical and tribological properties of not only copper alloys but also different alloys [13][14][15]. In the literature, the coating materials with varying alloying elements such as chromium and titanium were deposited over substrate material 316 L steel.…”

Section: Introductionmentioning

confidence: 99%

Investigation of structural, electrical and tribological properties of duplex surface treated and aged Cu−Cr−Zr alloy

Çelik

Yuksel²

2023

In this study, Cu−Cr−Zr alloy specimens were first subjected to aging heat treatment at 500 °C for two different durations (2 hours and 4 hours). Three different coating processes (silver, silver/copper duplex, and copper/silver duplex) were applied to the aged specimens using the physical vapor deposition method. Tensile test, microhardness measurement, wear test, electrical conductivity measurement and structural analysis (x‐ray diffraction and scanning electron microscope) were applied to the specimens. After the aging processes, the highest hardness and strength values of the Cu−Cr−Zr alloy were obtained in the specimens that were aged at 500 °C for 4 hours. When the wear resistance and electrical conductivity of the coated specimens were examined, it was determined that the specimens with duplex surface treatment performed better.