Tujuan penelitian untuk mengetahui pengaruh perlakuan panas (heat treatment) berupa pack carburizing terhadap kekerasan mikro permukaan (micro hardeness of surface), distribusi permukaan, perubahan struktur dan patahan spesimen sebelum sesudah pengerasan, serta efek kekuatan fatique dalam hal ini patah lelah (fatiqe failure). Spesimen terbuat dari baja karbon AISI 1020, dibentuk sesuai standar ...

Grade 37 titanium is widely used in racing applications thanks to its oxidation resistance up 650 °C, but it suffers from poor wear and fretting resistance, especially at high temperature. In this paper, different surface modification techniques, namely, carburizing, coating by PVD-ZrO2 a novel microwave plasma oxy-carburizing treatment, are investigated terms of hardness, scratch compared the ...

In the present work, the pyrolysis of acetylene was studied under steel vacuum carburizing conditions in a tubular flow reactor. The pyrolysis temperature ranged from 650 degrees C to 1050 degrees C. The partial pressure of acetylene in the feed mixture was 10 and 20 mbar, respectively, while the rest of the mixture consisted of nitrogen. The total pressure of the mixture was 1.6 bar. A kinetic...

Carbon case hardening, through natural evolution, commercialism, and economics, has become a process for which the possible number of variables is so large that it is hardly likely that any two companies will process exactly the same. There will always be some difference in choice of materials, equipment, or technique, and there will often be differences in the quality of the product. There may...