Mar
31
Ferrochromium is an important alloying component in steel industry. It is produced by smelting of chromite ores. Smelting process is carried out generally by reacting the mixture of ore, reducing agent and fluxing addition in an arc furnace. Additional to the application of smelting process in arc furnace, the reduction of chromite ore with carbon [...]
Mar
31
Products of work machines nails use SAE/AISI 4340 steels. Steels have high hardenability and it gets to hardness. So these steels can obtain toughness.These toughness hasn’t important dropping.We use these steels because this is important event for sector. Manifacture of casting, forcing or another methods at nails have some characteristic. Nails have characteristic with heat [...]
Mar
31
In the present study, the shielded metal arc welding electrodes containg boron were produced and low carbon steel plates were surfaced with single pass bead on plate welds. The effects of boron content in the shield of electrode on the microstructure, hardness and abrasive resistance of the surfaces were investigated. After surfacing, microstructural analysis including [...]
Mar
31
In the present study, the shielded metal arc welding electrodes containg boron were produced and low carbon steel plates were surfaced with single pass bead on plate welds. The effects of boron content in the shield of electrode on the microstructure, hardness and abrasive resistance of the surfaces were investigated. After surfacing, microstructural analysis including [...]
Mar
31
The aims of this study are to process of Ni reinforced alumina ceramic composites and to search of these composites microstructural, physical and mechanical properties.
Firstly, 0,3 µm grain sized Al2O3 mixed with 1, 3, 5 and 7 % weight nickel powder which grain size is 3-7 µm, then two grams masses were taken and each [...]
Mar
31
The aim of the study is to investigate coating microstructures, which may form on the surface of AISI 1010, AISI 4140, AISI D2 and AISI M2 steels subjected to aluminizing process by thermo-reactive diffusion method, to find out chemical composition and layer morphology of the microstructures and the effect of these on mechanical properties.
Mar
31
The aim of the study is to investigate coating microstructures, which may form on the surface of AISI 1010, AISI 4140, AISI D2 and AISI M2 steels subjected to aluminizing process by thermo-reactive diffusion method, to find out chemical composition and layer morphology of the microstructures and the effect of these on mechanical properties.
Mar
31
Electric arc spraying is a process of depositing metallic materials on a substrate. Arc spray metal tooling has been used commercially for sometime as a rapid method of producing moulds for use in a variety of manufacturing processes.It is a relatively fast and cheap method of producing tooling for prototyping and short-run manufacturing.
Mar
31
Polyurethanes are produced by mixturing the poliol and the isocyanate as foam from. One of the most important problems in the production of shaped polyurethane (PU) parts is polyurethane´s adherence to aluminum mould. Because of low cost, easily productivity and high thermal conductivity, Al moulds are preferred in the production of the PU. On the [...]
Mar
31
The main aim of this study is to investigate the effect of TiO2 addition on physical and mechanical properties of alumina based ceramics. In the experiments, Alcoa alumina in 0,4 µm TiO2 in 0,1 µm that have commercially purity are used. TiO2 is added to alumina at 5-10-15 wt. % ratios. Powder
