Carburizing is a process of adding carbon content in steel by using solid media. This study aims to determine the effectiveness carburizing on hardness and depth diffusion ST 42 with variety donor Meanwhile, media used were teak wood charcoal, coconut shell graphite. The results this are highest level namely 815.39 HV, charcoal 715.5 lowest graphite at 343.975 HV. While average was 0.0133 µ, 0....

To reduce the processing time for in-line carburizing, we performed ultra-rapid carburizing and quenching using induction heating. Conventional gas vacuum (low-pressure carburizing) are treated at 1203–1323 K, which is lower than eutectic temperature. In contrast, in this study, temperature of 1523 K was higher speeding up process. The SCM420 sample rapidly heated to treatment by CH4 N2 were mi...

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 ...