1M. Tech, Mechanical Engineering Department, PVP Siddhartha Engineering College, India
2Professor, Mechanical Engineering Department, PVP Siddhartha Engineering College, India
Online published on 21 November, 2017.
In the present investigation, the Heat treatable aluminum alloys of 2014, 6351 and 7075 alloys are subjected to a cyclic heat treatment process: Annealing: Solutionizing: Quenching with different media: Water Quenching, Oil Quenching, Forced Air Cooling, Air Cooling, and Furnace Cooling: and Aging. The Vickers hardness number is taken at every 30 microns location in order to ensure the uniformity of the undergone Heat treatment. It revealed that During the Annealing plus solutioninzing cycle the oil quenching resulted in uniform hardness whereas precipitation hardening or aging resulted in much higher i.e., nearly 2–3 times higher than the oil quenched alloy.
Heat treatment, Hardness, Solutionizing, precipitation
