Wear Behavior of Plasma Processed LM6 Alloy

Abstract

In the current work, wear behavior of plasma processed LM6 alloy is investigated. LM6 alloy was prepared by plasma technique. The samples were aged at 350°C & 450°C for 2 hours followed by water quenching. A comparative study of the metallographic structure and properties viz. hardness, density and wear of the non-heat and heat treated alloy samples were carried out. A very fine lamellar structure is observed in case of 450°C heat treated samples than that of sample heat treated at 350°C and non-heat treated samples. Highest hardness value of 68.11 VHN is observed with the sample heat treated at 450°C. Density is found to be the lowest in non-heat treated samples and it increases with increasing heat treatment temperature. Wear experiments were carried on a pin-on-disc set up (of Ducom make), varying applied loads (between 10-40Newton and varying sliding speed (from 0.94 m. s-1 to 2. 83m.s-1). Maximum wear resistance is observed with the specimen heat treated at 450°C.

The Application of Plasma Processes during the Production of Pigments

“…There exist various areas of application of plasma processes: in chemical industry for producing polymers [1,2], removing corrosion layers [3], residuals [4], powders [5,6], deposition of films and membranes [7,8,9], separation of isotopes [10], obtaining metals and metal oxides [11,12,13,14,15,16,17], biotechnology [18], microbiology, medical technology [19], geophysics [20], textile industry [21]. One of the most challenging trends of civil engineering is the production of pigments used as paints as coatings.…”