Stages of receiving samples of high-austenitic powder steel 110G13P a method of dynamic hot pressing are presented. Processes of formation of structure and properties of steklosoderzhashchy powder steel 110G13P are considered. Significant positive effect on formation of structure of powder steel 110G13P with application glass components is defined.
Keywords: high-austenitic powder steel, method of dynamic hot pressing, agglomeration, mechanical activation of furnace charge, oxidic films
An implementation of the interactive technology for conducting laboratory classes on discipline "Technology of construction materials" in the form of a business game. A scenario is developed in laboratory classes with the elements of a business game. This interactive technology is being successfully implemented at the Department of "mechanical Engineering and applied mechanics" VITI NRNU MEPhI in the representation of the discipline "Technology of construction materials" and its sections.
Keywords: business game, an interactive form, technology of structural materials, protective coating
The quantity of carbide component in the deposited coating made subsonic and supersonic gas-powder surfacing. The investigations, which revealed that the preferred method is a supersonic gas-powder surfacing in the lower position.
Keywords: supersonic gas-powder cladding, carbide component, protective coatings, subsonic gas-powder cladding microstructure
The basic laws of seals and homogenization of powder steel by electrocontact compaction (ECC). Defined process conditions electrocontact compaction (ECC): current density of 36 MA / m², compaction pressure of 380 MPa, the duration of the process 70s that achieve high-density state of the material.
Keywords: electrocontact compaction,zhelezografitovye composition, compactibility, homogenization, porosity, powdered steel, diffusion microstructure splicing current density
A comprehensive study of metallographic structure and properties of coatings made by the method of gas-powder surfacing. Phase analysis was carried out to determine the structural components of the internal condition of the coating. Conducted an analysis of the diffraction patterns and microstructures.
Keywords: gaspowder welding, powder steel, microstructure, and protective coatings
Acoustic system parameters were selected and calculated: wave modes used when controlling, wave entry and frequency angles according to kind of decay process and ultrasonic attenuation. Control procedure was developed
Keywords: ultrozvuk, frequency, attenuation process, technology, acoustic system
A number of tests in cutting setup alloy 10H12NVMFA fulfilled. A number of studies for specification of process gas (oxygen) impact on cutting speed, also of cutting speed impact on cutting width were performed. Optimal cutting parameters specified experimentally.
Keywords: laser cutting, cutting speed, cut sidewall, oxygen pressure, capacity