17-4 PH steel is a martensitic precipitation hardening stainless with an excellent convenience of good corrosion resistance and high mechanical properties. At the same time, it has been determined from literature that very little research done on milling this steel, which one materials are difficult to process. Therefore, experimental was focused coated carbide inserts in dry cutting environmen...

Abstract The lower capital and running cost of the Markforged Metal X™ platform, in comparison to competing metal additive manufacturing systems, makes it a highly attractive proposition for several industries. unusual print, then sinter, process also has potential avoid many metallurgy issues that can arise using more typical manufacturing, which relies on melting bind material. However, mecha...

Material extrusion additive manufacturing of metal (metal MEX), which is one the 3D printing processes, has gained more interests because its simplicity and economics. Metal MEX process similar to conventional injection moulding (MIM) process, consisting feedstock preparation powder polymer binders, layer-by-layer MEX) or create green parts, debinding remove binders sintering consolidated metal...

Abstract The present work summarizes the results of an experimental campaign aimed at assessing ductility a wrought 17-4PH steel alloy. A simple specimen reproducing multiaxial stress states through universal testing machine is selected. Finite Element Model (FEM) for each test setup to extract local values and strain in most critical point on onset failure. Digital Image Correlation (DIC) tech...

Abstract Components produced by additive manufacturing (AM) via direct metal laser sintering (DMLS) have typical as-fabricated surface defects. As a result, properties of AM products should be modified to increase their strength, anti-wear behavior, and at the same time ensure high corrosion resistance. Surface modification shot peening (SP) is considered suitable for engineering devices made 1...

Abstract The 17–4 Precipitation Hardening Stainless Steel (PH SS) manufactured by Selective Laser Melting (SLM) has wide application perspectives, but they are limited due to defects and anisotropy. selection of the appropriate process variables plays a fundamental part in microstructure determination final mechanical corrosion properties. main purpose this study is analyze behavior, hardness P...

Precipitation-hardened (PH) stainless steels have been widely used as structural materials and related applications in marine environments, power plants (light-water and pressurized water reactors), and chemical industries because of their good mechanical properties and corrosion resistance at typical service temperatures below 300oC. 17-4 PH (A1S1630) stainless steel (15–17.5 Cr, 3–5 Ni, 3–5 C...

BACKGROUND Coronary stents prevent constrictive arterial remodeling but stimulate neointimal hyperplasia. Stainless steel induces a metallic foreign body reaction, which is absent for titanium. The hypothesis of the present study was that titanium renders the stent surface biologically inert, with reduced platelet and fibrinogen binding. METHODS AND RESULTS Twelve pigs were instrumented with ...