EFFECT OF THE NITRIDING PROCESS IN THE WEAR BEHAVIOUR OF DIN 1.2344 HOT WORK STEEL

Year 2020, Volume: 16 Issue: 1, 45 - 70

Seda Ataş Bakdemir Doğuş Özkan M. Cenk Türküz Elif Uzun Serdar Salman

Abstract

Gas nitriding is a widely applied thermo-chemical surface treatment, which is used to improve mechanical properties and wear characteristics of iron and steels. The effects of the gas nitriding process on the mechanical and wear resistance properties of DIN 1.2344 (X40CrMoV5-1) hot work steel were investigated in this paper. Nitrided and non-nitrided samples were characterized through the optical microscope, SEM/EDX, X-ray diffraction, atomic force microscope (AFM) and 3D optical profilometer. The results of analyses showed increases in wear resistance of the nitrided sample due to the formation of surface layers of nitrides and oxides.

Keywords

Gas Nitriding, Wear Behavior, DIN 1.2344 Steel, Atomic Force Microscope

Supporting Institution

Scientific Research Projects Unit of Marmara University, Turkey

Project Number

FEN-C-YLP-120619-0198

Thanks

Titanit Ultrahard PVD Company

NİTRASYON İŞLEMİNİN DIN 1.2344 SICAK İŞ TAKIM ÇELİĞİNİN AŞINMA DAVRANIŞLARI ÜZERİNE ETKİLERİ

Abstract

Gaz nitrasyon yöntemi demir ve çeliklerin mekaniksel
özelliklerini ve aşınma karakteristiklerini geliştirmek için uygulanan bir
termokimyasal yüzey işlemidir. Bu çalışmada DIN 1.2344 (X40CrMoV5-1) sıcak iş
takım çeliğine uygulanan gaz nitrasyon işleminin mekanik özelliklerine ve
aşınma direncine etkisi araştırılmıştır. Nitrürlenmiş numune ve işlem görmemiş
referans numune optik mikroskop, SEM EDX, X ışını difraksiyonu, atomik kuvvet mikroskopu
ve 3D optik profilometre yoluyla karakterize edilmiştir. Analiz sonuçları
nitrürlenmiş numune yüzeyinde oluşan nitrür alaşımları ve oksidasyon tabakası
sayesinde aşınma direnci artış meydana geldiğini göstermiştir. 

Keywords

Gaz Nitrasyon, Aşınma Davranışı, DIN 1.2344 Çeliği, Atomik Kuvvet Mikroskopu

Project Number

FEN-C-YLP-120619-0198

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