Improving the Surface Performance of Discarded AISI T1 Steel by Cathodic Reduction and Thermal Diffusion-Based Boriding

Kartal Şireli G., Yuce H., Arslan M., Karimzadehkhoei M., Timur S. İ.

Journal of Materials Engineering and Performance, 2023 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Publication Date: 2023
  • Doi Number: 10.1007/s11665-023-07817-5
  • Journal Name: Journal of Materials Engineering and Performance
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: AISI T1, boriding, CRTD-Bor, growth kinetic, phase homogenization (PH), thermal oxidation
  • Istanbul Technical University Affiliated: Yes

Abstract

© 2023, ASM International.The surface properties of discarded glass cutting scissors were improved by modifying their surfaces via a fast, low-cost, and environmentally friendly boron diffusion technique called as cathodic reduction and thermal diffusion-based boriding (CRTD-Bor) process. The kinetic calculations revealed the activation energy of boride growth on discarded AISI T1 steel as 179 kJ/mole. XRD analyses demonstrated the existence of iron borides along with previously formed carbides and the cross-sectional SEM investigations with EDS analyses confirmed these multiple borides and carbide structures. Phase homogenization (PH) stages were integrated into CRTD-Bor to eliminate the brittle FeB layer. After the optimizations, it was achieved to grow ~ 24 µm thick Fe2B layer, exhibiting 1700 ± 200 HV hardness with good adhesion (HF1) to the substrate following to 60 min of treatment (15 min CRTD-Bor and 45 min PH at 900 °C). The idealized boriding procedure improved the oxidation resistance of the discarded T1 steels by tenfold. Graphical abstract: [Figure not available: see fulltext.]