WEAR PERFORMANCE OF AISI 304L STAINLESS STEEL UNDER VARIOUS AMBIENT TEMPERATURES


Karabeyoğlu S., Ekşİ O., Ergene B., Bolat Ç.

Latin American Applied Research, vol.52, no.4, pp.289-296, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 52 Issue: 4
  • Publication Date: 2022
  • Doi Number: 10.52292/j.laar.2022.771
  • Journal Name: Latin American Applied Research
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.289-296
  • Keywords: wear, friction, AISI 304L, Hardness, Dry-sliding
  • Istanbul Technical University Affiliated: Yes

Abstract

© 2022,Latin American Applied Research. All Rights Reserved.AISI 304L steel is widely preferred in many fields such as pipe sector, biomedical and nu-clear industry due to its wear behavior and good ma-chinability. In this experimental study, temperature-dependent wear properties and worn surface struc-tures of AISI 304L steel were investigated. All tests were conducted by using pin-on-disc test equipment under unlubricated conditions. As ambient tempera-tures, 25°C, 50°C, 100°C, 150°C, and 200°C were se-lected. The results indicated that the main friction properties, wear mechanisms, and wear rate of the worn steel samples were significantly affected by al-tering the test temperatures. It was observed that the friction coefficient oscillated at lower temperatures, but this case was quite different at higher tempera-tures. Micro observations showed that mixed defor-mation characteristic dominated by adhesive wear was observed between 25°C and 150°C while abrasive wear became more effective between 150°C and 200°C. Moreover, wear rate and specific wear rate values increased until 150°C, then dropped as a result of changing the wear mechanism and contact surface structure.