Developing titanium aluminides (Ti-Al) based alloys by means of Laser Engineered Net Shaping (LENS) in-situ manufacturing yields attractive properties as compared to other fabrication methods. Ti-Al have attracted much attention for high-temperature performance in gas turbine and automobile applications because their such low density, high strength, stiffness, good oxidation resistance. In this...

Abstract 30MnB5 boron alloyed steel surface is coated using different coating techniques, namely 60(Ni-15Cr-4.4Si-3.5Fe-3.2B 0.7C)-40(WC 12Co) metallic powder plasma spray, Fe-28Cr-5C-1Mn alloy wire arc WC-10Co-4Cr (thick) high velocity oxy-fuel (HVOF), and (fine) diamond jet HVOF. The microstructure of the crude sample consists ferrite pearlite matrices iron carbide structures. intermediate bi...

The main objective of this work was to characterize and compare the microstructural mechanical properties as well erosion resistance WC-12Co WC-10Co-4Cr coatings. High Velocity Oxy Fuel (HVOF) process applied carbon manganese steel API 2H typically used in oil gas industries. Microstructural characterization feedstock powder coatings conducted using scanning electron microscope (SEM), energy di...

Önemli bir hammadde olan izobütene her geçen gün talebin artması, izobütan dehidrojenasyonunu dikkat çekici konuma getirmiştir. Endotermik denge limitasyonlu bu reaksiyon için katalizör sentezi son derece önemlidir. Cr temelli katalizörler monokromatların en aktif tür olduğu bilinmektedir. Bu çalışmada, içeriğinin Cr@MCM-41 yapısına, kromat türleri ve miktarları üzerine etkilerinin araştırılmas...