Investigation on Microstructural and Mechanical Properties of FeNiMnCrCoTi0.1 High Entropy Alloy with B Addition

Yıl 2024, , 195 - 213, 26.06.2024

Mahmud Cemaleddin Yalcın , Şükrü Talaş

https://doi.org/10.55546/jmm.1498662

Öz

High-entropy alloys (HEAs) are alloys with high potential for use in defense, aircraft, and aerospace industries due to their properties such as high strength, hardness, wear resistance, corrosion resistance, and ability to operate at high temperatures. Therefore, in this study, FeNiMnCrCoTi0.1BX (x values in molar ratio, x = 0-1) high entropy alloys were produced by arc melting technique under protective gas atmosphere using a reverse vacuum method. The microstructural properties of the produced HEAs were examined by scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) analysis was also performed. The crystal lattice structure of the produced HEAs was determined by X-ray diffraction (XRD) analysis. Microhardness and compression tests were conducted to determine the mechanical properties of the produced HEAs. It is observed that the hardness of the FeNiMnCrCoTi0.1BX high-entropy alloy increases as the boron content increases. The highest microhardness obtained was 593.8 HV in the FeNiMnCrCoTi0.1B alloy. As the boron content increases, the yield stress has also increased in compression testing. The highest yield stress was determined to be 1329 MPa in the FeNiMnCrCoTi0.1B alloy.

Anahtar Kelimeler

High Entropy Alloy, Arc Melting, Microhardness, Compression Test, Physical Properties

Destekleyen Kurum

Afyon Kocatepe University

Proje Numarası

21.FEN.BİL.11

Teşekkür

This study was supported by Afyon Kocatepe University Scientific Research Projects Coordination Unit with Project number of "21.FEN.BİL.11".

FeNiMnCrCoTi0,1 Yüksek Entropili Alaşıma Yapılan B İlavesi ile Mikroyapı ve Mekanik Özelliklerin İncelenmesi

Öz

Yüksek entropi alaşımlar (HEA), yüksek mukavemet, sertlik, aşınma direnci, korozyon direnci ve yüksek sıcaklıklarda çalışma yeteneği gibi özelliklere sahip olmaları nedeniyle savunma, havacılık ve uzay endüstrilerinde kullanım potansiyeline sahip alaşımlardır. Bu nedenle, bu çalışmada, koruyucu gaz atmosferi altında ark eritme tekniği ile ters vakum sistemi kullanılarak FeNiMnCrCoTi0.1BX (mol oranındaki x değerleri, x= 0-1) yüksek entropi alaşımları üretildi. Üretilen HEA'ların mikroyapısal özellikleri taramalı elektron mikroskopu (SEM) ile incelendi ve enerji dağılımlı X-ışını spektroskopisi (EDX) analizi yapıldı. Üretilen HEA'ların kristal yapıları X-ışını kırınımı (XRD) analizi ile belirlendi. Üretilen HEA'ların mekanik özelliklerini belirlemek için mikrosertlik ve basınç testleri yapıldı. FeNiMnCrCoTi0.1BX yüksek entropi alaşımının sertliğinin bor içeriği arttıkça arttığı gözlemlenmiştir. Elde edilen en yüksek mikrosertlik, FeNiMnCrCoTi0.1B alaşımında 593.8 HV olarak belirlenmiştir. Basma testinde de bor miktarı arttıkça akmak gerilmesi artmıştır. En yüksek akma gerilmesi FeNiMnCrCoTi0,1B alaşımında 1329 MPa olarak belirlenmiştir.

Anahtar Kelimeler

Yüksek Entropili Alaşım, Ark Ergitme, Mikrosertlik, Basma Testi, Fiziksel Özellikler

Destekleyen Kurum

Afyon Kocatepe Üniversitesi

Proje Numarası

21.FEN.BİL.11

Teşekkür

Bu çalışma, Afyon Kocatepe Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi tarafından “21.FEN.BİL.11” kodlu proje ile desteklenmiştir.

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