The purpose of this research was to analyze and compare the mechanical properties of parts made using both Direct Metal Laser Sintering (DMLS) and traditional manufacturing methods like casting or forging. Previous research in DMLS was conducted using various materials, but there has been very little done for 17-4PH stainless steel. All the samples used for testing were conducted using the EOSI...

Supersaturated Al-Ti-Cr alloys were produced by a continuous electron beam evaporation technique. The as-deposited alloy sheets were fcc supersaturated solid solution with an average grain size of about 400 nm. Due to the fine grain size, the hardness of the alloy was as high as 270Hv. The sheet showed age hardening, and the peak hardness of 340Hv was obtained after aging at 623K for 900 s, in ...

Deep cryogenic treatment of tool steels, incorporated in conventional hardening and tempering, has been a topic intensive research recent years. Yet, the governing microstructural mechanisms involved deep high-alloyed steels are still controversial. Thus, an situ X-ray diffraction study is conducted on three X38CrMoV5-3, X153CrMoV12, ~X190CrVMo20-4 to shed light evolution during subsequent temp...

The present study investigates the effect of two different microstructural conditions on hot deformation behavior precipitation-hardenable AA7075 by compression tests ranging from 200 °C to 350 and strain rates 0.1 s−1 10 s−1. first condition is solution heat-treated quenched in water, whereas second achieved subsequent artificial aging stabilization for 24 h at respective intended temperature....

Microstructure evolution and mechanical properties in an Fe-17Cr-4Ni-4Cu alloy aged at 475 °C after different aging times were studied. Conventional transmission electron microscopy (TEM) high-resolution (HREM) studies revealed the formation of 9R-structure Cu-rich precipitates Cr-rich α’ phase by spinodal decomposition samples 100–1000 h. The fine lead to a significant increase hardness, toget...