Investigation on microstructure, surface and corrosion characteristics of heat treated AISI 420 martensitic stainless steel laser welds in simulated body fluid (SBF)      
Yazarlar (1)
Prof. Dr. Ceyhun KÖSE Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı International Journal of Electrochemical Science
Dergi ISSN 1452-3981 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 12-2018
Cilt No 13
Sayı 12
Sayfalar 12208 / 12225
DOI Numarası 10.20964/2018.12.30
Makale Linki http://www.electrochemsci.org/abstracts/vol13/131212208.pdf
Özet
Aim of the present study was to investigate metallurgical properties of pre- and post-weld heat treated and non-heat treated AISI 420 martensitic stainless steel joined using CO2 laser welding method. In addition, heat treated laser welded and base metal samples were immersed in Simulated Body Fluid (SBF) for 1, 3, 7, 14, 21 and 28 days, and apatite formations on base metal and on welding seam surface were studied. Corrosion properties on all samples immersed in SBF were determined based on weight loss method. Due to heat treatment process, corrosion sensitivity occurred by producing carbides, such as Cr23C6, M23C6, and decreasing local chromium content in the weld zone. In addition, weld heat input affected corrosion resistance.
Anahtar Kelimeler
Laser welding | Martensitic stainless steel | Heat treatment | Microstructure | Surface Corrosion