The mechanical properties of six 35Ag-30Pd-20Au-15Cu alloys containing different contents (2% and 4%) of Sn, Ga, or In and a 35Ag-30Pd-20Au-15Cu alloy without additives were evaluated. These alloys were subjected to four different heat treatments before a mechanical test. The distribution of the elements and their contents were analyzed. The mechanical properties of 35Ag-30Pd-20Au-15Cu alloy ch...

The technology of thermocyclic treatment fine‑module gears has been improved, which makes it possible to increase their wear resistance by 30–40 %. Gears were subjected preliminary cyclic heating and subsequent impulse hardening. In all cases hardening, a martensitic structure is formed, provides high rigidity the material. sizes plates depend on temperature during quenching. During heat up 450...

Nowadays, industry development requires making new strengthening technologies that allow expanding the rational scope of their application. It is quite promising to use methods combined hardening changing physical and mechanical properties surface layer during successive external actions having different nature: sequential plastic deformation thermal effects. Therefore, objective conducted stud...

17–4 PH (precipitation hardening) stainless steel is commonly used for the fabrication of complicated molds with conformal cooling channels using laser powder bed fusion process ( L -PBF). However, their microstructure in as-printed condition varies notably chemical composition feedstock powder, resulting different age-hardening behavior. In present investigation, components were fabricated by ...

The dependence of the mechanism of age hardening in Al-Mg-Si alloys on their Si content, the pre-aging conditions and addition of Cu has been investigated. For this purpose, the solute clusters and the metastable precipitates in aged Al-Mg-Si alloys have been characterized by a three dimensional atom probe (3DAP) and transmission electron microscopy (TEM). Atom probe analysis results have revea...