C250 steel, renowned for its remarkable strength and toughness, is extensively utilized in the aerospace industry manufacturing critical components. This research investigates microstructure properties of forgings produced through different heat treatment temperatures, aging durations, thermal cycling intervals. The results demonstrate that samples were compressed at 1050 °C followed by air-coo...

The main task of this work was to study the influence of the cooling conditions after homogenization of the 6082 aluminium alloys. The effect of the solution heat treatment temperature on the mechanism and ageing kinetics of the two commercial wrought aluminum alloys 6005 and 6082 was also analyzed. The alloys were heat treated—T4 with a wide range of solution heat treatment temperature from 51...

Various heat treatments are applied to improve the mechanical properties of steels depending on intended use. In this study, variation fatigue strength H13 hot work tool steel with treatment in a GS 550 bath was investigated. It investigated by applying four different as first preheating, second hardening and hardening. Each batch samples subjected rotating bending test at room temperature afte...

This paper presents an evolutionary based method to obtain the un-stressed lattice spacing, d0, required to calculate the residual stress profile across a weld of an age-hardenable aluminum alloy, AA2024. Due to the age-hardening nature of this alloy, the d0 value depends on the heat treatment. In the case of welds, the heat treatment imposed by the welding operation differs significantly depen...

Modelling of technological processes of heat treatment or welding, involving multiple heat source transitions, requires considering the phenomenon of tempering. In work have been presented results of dilatometric research of hardened C45 steel subjected to tempering. The analysis of the infl uence of heating rate at the kinetic determined from dilatometric curves has been made. There have also ...

This study aims to prepare a stir-cast EV31A magnesium alloy and investigate the effects of T4 condition (solid solution strengthening) T6 strengthening cum age hardening) on phases, microstructure, mechanical properties, fractography. The solid at 520 °C for 8 h allows Rare-Earth Elements (REE) dissolve in Mg matrix, but solubility is limited by presence Zn. phenomenon responsible heat-treated...

The purpose of this study was to evaluate mechanical properties of the orthodontic wires according to heat treatment environments and cooling methods. Four types of wires were heat-treated in air, argon and vacuum at 500◦C, for 6 min, and were then either cooled in the furnace or a water bath. Increases in microhardness, maximal strength, yield strength and Young’s modulus of the orthodontic wi...

Several alloys described as stainless steel which resist tarnish and corrosion in the mouth are being used for a variety of dental appliances and instruments. Probably the greatest application of stainless steel is for orthodontic arch wires and bands, while a more limited use is for temporary space maintainers and crown forms. Root-canal files and reamers designed for endodontic operations als...