The Effect of Vacuum Quenching on Corrosion and Hardness of the Surface of SKD61 Steel

Syifa Luthfiyah, Ahmad Faridh, Bambang Soegijono

Research output: Contribution to journalConference articlepeer-review

Abstract

JIS SKD61 Steel is chromium-molybdenum hot work steel which has composition 5.58 wt% Cr - 2.51 wt% Mo. This steel is a well-known material used as a die material to get good mechanical and hardening properties. Besides this material should have good corrosion resistance. Samples made of SKD61 steel were subjected to vacuum heat treatment at 1030°C for 3 hours with step quenching in different rates of quenching. The difference in the cooling speed of each sample causes properties on the surface to vary. Micro Hardness Vickers is a tool used to determine micro-scale hardness. While to test corrosion resistance, electrochemical testing was carried out using NaCl solution with variations in concentrations of 1%, 3.5%, and 7%. X-Ray Diffraction was used to characterize the crystal structure and the crystallite size. The results show that the speed of quenching affects the hardness of the surface of the material, structure and corrosion resistance.

Original languageEnglish
Article number012033
JournalIOP Conference Series: Materials Science and Engineering
Volume694
Issue number1
DOIs
Publication statusPublished - 21 Nov 2019
Event1st International Symposium on Advances and Innovations in Mechanical Engineering, ISAIME 2019 - Jakarta, Indonesia
Duration: 9 Oct 201910 Oct 2019

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