In this study, S235JR (1.0037), 21NiCrMo2 (1.6523), C45 (1.0503), 42CrMo4 (1.7225) steels were coated with nickel, copper, silver, and tin. Then, the radiation shielding performances of uncoated investigated. The firstly designed by coating processes via electrolytic plating method on behalf Ni, Cu, Ag Sn metals. samples then irradiated radioactive sources for transmission gamma rays at 81–383 ...

The purpose of this work is to study the effect oil pocket shape and density on friction in reciprocating sliding. experiments were conducted motion under starved lubrication conditions. Tribological tests performed using an Optimol SRV5 tribotester. frictional pair consisted two discs 42CrMo4 steel. One disc was laser textured. pockets had circular sandglass shapes. Disc samples various textur...

Electrochemical machining is based on the anodic dissolution of most metals and generates high quality polished surfaces. However, ferrite-perlite 42CrMo4 steel reveals local optical changes at surface after electrochemical finishing, such as a widely variable finish from shiny (reflective) to rough (dark) surfaces even one processing step. The different areas (AISI 4140) are studied by electro...

The article deals with a possibilities of an enhancement functional properties highly stressed components by specific combination surface technology. Two technologies such as plasma nitriding and laser shock peening were selected for the experiment. Those applied upon steel 42CrMo4 frequently utilized in manufacturing strained components. Properties obtained tested following experimental method...

Abstract Within the research work of Transregional Collaborative Research Center TRR 136, process signatures were determined for processes that generate essentially thermal loading component surface layer. These represent correlations between material modifications (e. g. changes residual stress, microstructure, hardness profile, etc.) and characteristic values loading. The underlying idea is d...