This research aims to determine the effect of various normalizing holding times on the corrosion rate of carbon steel ST 42 using an inhibitor extracted from potato peel. In this study, specimens were subjected to normalizing holding time, treated with an inhibitor, and then immersed in a corrosive NaCl solution. Subsequently, each specimen underwent normalizing heat treatment with holding time…
Penelitian ini bertujuan untuk menganalisa perubahan kekerasan dan struktur mikro pahat bubut HSS setelah melalui proses perlakuan panas. Perlakuan panas yang dilakukan berupa quenching dengan variasi holding time pemanasan selama 30, 45, 60 menit dengan suhu 600 0C. Setelah melalui proses pengujian maka mendapatkan nilai kekerasan rata-rata spesimen awal sebesar 672,7665 VHN, Nilai rata-rata k…