Search Results

The microstructure of the alloy and the manner in which it responds to heat treatment has been investigated. The alloy was aged at 550OC when it was initially spray-formed, or when its thickness was decreased by 38%. Before further aging of some specimens, a four-hour solution treatment at 1015OC was performed. The subsequent phase was a cold deformation that was barely 60% of the sample's initial thickness. The alloys' electrical conductivity and hardness may be evaluated based on how long they had been created. Following solution treatment and cold rolling, the alloy's peak hardness was around 380 kgf/mm2. In samples aged immediately under spray-produced conditions, the maximum peak hardness of 255 kgf/mm2 was attained. Conductivities in freshly cold-rolled samples could reach up to 75% of the standard for annealed copper internationally. It looks at the microstructural features of this alloy in this context, paying close attention to how various processing conditions affect them.

This article explores the impact of As-built versus annealed Fused Deposition Modeling (FDM) on the mechanical properties of test samples fabricated from two distinct materials: Polyamide 6 (PA6) and PA6 with carbon fiber filament. Employing the FDM technique, these samples were meticulously produced, with significant process parameters maintained at optimal values. Two sets of printed specimens were prepared for examination, one composed of PA6 and the other of PA6 with carbon fiber (CF) reinforcement. The first set was subjected to mechanical testing in its As-built condition, while the second set underwent an annealing process utilizing a muffle furnace. The annealing reduces internal stresses, enhances interlayer adhesion, and promotes crystallinity. For both the sent samples exposed to comprehensive assessments to evaluate various mechanical performance attributes, including hardness, impact strength, tensile strength and flexural strength.

Aluminum alloys are employed in agricultural equipment, aerospace sectors, medical instruments, machinery, automobiles, etc. due to their physical and mechanical characteristics. The geometrical shape and size of the parts are modified in turning operation by using a single-point cutting tool. A356 aluminum alloy is widely used in various engineering sectors, hence there is a necessity to produce A-356 components with quality. The inappropriate cutting parameters used in turning operation entail high production costs and reduce tool life. Box–Behnken design (BBD) based on response surface methodology (RSM) was used to design the experiments such that the experiment trials were conducted by varying cutting parameters like N-spindle speed (rpm), f-feed rate (mm/rev), and d-depth of cut (mm). The multi-objective responses, such as surface roughness (SR) and metal removal rate (MRR) were analyzed with the desirability method.

Carburizing, austenitic, and boronizing were used to enhance the friction and wear properties of AISI 1080 and 1566 steel surfaces. They were subjected to austenitic, solid boronizing, liquid and gaseous carburizing processes. An examination done and observed the microstructure, X-ray diffraction patterns, and hardness distributions of the material. For the wear testing, pin-on-disc specimen topologies were employed, and removal efficiencies were estimated based on the sliding distance and the required force applied. In addition, the abrasiveness of the sample surfaces was assessed. The heat treatment capacity of AISI 1020 steel was investigated and compared to the heat treatment capabilities of other steel samples to establish how much heat can be applied to the steel.