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

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

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

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