EFFECT OF LASER HARDENING ON THE MECHANICAL, TRIBOLOGICAL AND CORROSION PROPERTIES OF LOW ALLOY STEELS
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Technical Faculty, Bor-Serbia
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This research focuses on studying the mechanical, tribological, and corrosion behaviors of alloy steels: AISI 4340, AISI 5140, and AISI 8620 by laser hardening, respectively. In light of the tests which have been carried out meticulously, it is concluded that the optimum laser hardening parameter for all steel grades is 4 mm/s scanning speed and 1300 degrees C surface temperature. Micro-structural changes, Vickers hardness as mechanical properties, and tribological properties with reciprocating wear tests were carried out. Furthermore, corrosion tests were conducted. The test results reveal that the maximum hardness is achieved 50-300 mu m below the surface for all laser-hardened steels. Additionally, this study demonstrates that the wear resistance of steel is enhanced by the implementation of laser hardening. This study also determines that laser hardening has a positive impact on lifting the corrosion resistance behavior of AISI 4340 steel. In contrast, the corrosion resistance properties of AISI 8620 steel were reduced nearly by 54.17%.
Açıklama
Anahtar Kelimeler
Laser Hardening, Alloy Steels, Mechanical Properties, Wear Resistance, Corrosion
Kaynak
Journal of Mining and Metallurgy Section B-Metallurgy
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
59
Sayı
2
