1 - 10 of 16 articles
The efficiency of conventional boiler/steam turbine fossil power plants is a strong function of the steam temperature and pressure. Research to increase both has been pursued worldwide, since the energy crisis in the 1970s. The need to reduce CO2 emission has recently provided an additional...
Three iterations of Taguchi designed experiments and analyses were used to determine optimal thermal treatments for minimizing retained austenite content while maximizing Rockwell hardness (HRC) in AISI 52100 bearing steel. Experimental variables chosen for this study included austenitizing and...
Mechanical properties of high-density powder metallurgy (PM) steels have been evaluated using standard tests, and a theoretical model using the artificial neural network (ANN) has been developed. Various heat treatments were carried out to study their influence on mechanical properties, viz....
Effects of yttrium on the mechanical property and the cutting performance of Al2O3/Ti(C,N) composite ceramic tool material have been studied in detail. Results show that the addition of yttrium of a certain amount can noticeably improve the mechanical property of Al2O3/Ti(C,N) ceramic material....
This article contains a presentation of the proper equation of fracture curve and a treatment of requirements with which this equation has to comply. It has been proved that using an exponential curve for this purpose is erroneous. Studies have been presented and discussed, which show that the...
Thermal interface mateials for facilitating heat transfer by conduction across two adjacent surfaces are reviewed. They include thermal fluids and pastes, solders, phase change materials (PCMs), and resilient thermal conductors.
In this study, the slurry wear behavior of a zinc-based alloy has been examined by the sample rotation method over a range of traversal speeds and distances. The influence of adding silicon to the alloy system on its wear characteristics has also been examined.
Inconel alloys find wide application in industry as high-temperature resistance materials. In the present study, refurbishment of the Inconel 617 alloy after 37,000 h of operation in the field is carried out through the heat-treatment process. The electrochemical response of the heat-treated...
Continuous wave carbon-dioxide (CW CO2) laser was employed to study the hardfacing characteristics of cladding S42000 stainless steel powder on K02600 mild steel. The cladding layer was overlapped track-by-track and then layer-by-layer. Identical hardfacing on mild steel by submerged are welding...
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