Fabrication of fully porous and porous-surfaced Ti-6Al-4V implants by electro-discharge-sintering of spherical Ti-6Al-4V powders in an one-step process

Processing conditions and microstructural features of porous 316L stainless steel components by DMLS

“…Therefore, there exists a growing interest in their practical applications in various industrial sectors such as automotive industry, aerospace industry, sporting equipment, and biomedical industry [3]. So far, a number of approaches concerning the fabrication of porous metals have been reported, including sintering of metal powders [4,5], foaming of slurries [6,7], and casting methods [8,9]. However, a common limitation of the powder sintering method is that pore characteristics (e.g., size, shape, and distribution of pores) are usually difficult to control [10].…”

Hydrogen absorption kinetics of porous Ti6Al4V alloys

“…The data t,˛and (d˛/dt) were obtained from˛-t kinetic curves of hydrogen absorption, which were regressed linearly based on Eq. (1) or (2). The function f(˛) or g(a) giving the best linearity is considered as the mechanism of hydrogen absorption reaction in porous Ti6Al4V alloys.…”

“…Porous Ti and its alloys, primarily Ti6Al4V, have been widely used as orthopedic and dental implants because of their excellent corrosion resistance, biocompatibility and high strength-to-weight ratio [1,2]. Generally, porous Ti alloys are produced by powder metallurgy process, the usual sequence of which is to compact metal powders in a die at room temperature to form a porous billet, and then sinter the billet at elevated temperatures.…”

Formation of porous metallic glass compacts by electro-discharge sintering

“…It has been well known that the EDS is considered as a novel concept to fabricate the porous structure by applying high voltage and high current in times as short as ∼300 s [13,14]. Thus, it is believed that the fabrication of the metastable porous structure such as the metallic glasses without phase transformation is suitable by using the EDS.…”