YÜKSEK ENTROPİLİ ALAŞIMLAR: PRENSİPLER VE ALAŞIM TASARIMI

Year 2019, Volume: 8 Issue: 2, 1160 - 1178, 31.07.2019

Azmi Erdogan , Sakin Zeytin

https://doi.org/10.28948/ngumuh.517876

Cited By: 2

Abstract

Çoğu
geleneksel alaşım tek bir element üzerinde kurulmaktadır. Farklı türlerdeki alaşım
elementleri bu ana element üzerine özellikleri geliştirmek amacıyla eklenir ve
böylece tek bir ana element üzerinde dayanan alaşım aileleri oluşturulur.
Yüksek entropili alaşımlarda farklı olarak alaşımlar beş veya daha fazla ana
element içerirler. Yüksek entropi kavramı, sadece bir baskın öğeye dayanan
klasik alaşımlama yaklaşımı ile elde edilemeyen benzersiz özelliklere sahip
gelişmiş malzemeler geliştirmenin yeni bir yolunu ortaya koymaktadır. Bu
makale, çekirdek etkileri, fazlar ve kristal yapıları, mekanik özellikler,
notasyon ve üretim teknikleri de dahil olmak üzere YEA’ların bazı önemli
yönlerini açıklamaktadır.

Keywords

Yüksek entropili alaşımlar, metaller ve alaşımlar, entropi, entalpi, katır eriyik

HIGH ENTROPY ALLOYS: PRINCIPLES AND ALLOY DESIGN

Abstract

Most
conventional alloys are based on one principal element. Different types of
alloying elements are added to the principal element to improve its properties,
forming an alloy family based on the principal element. Unlike this,
High-entropy alloys (HEAs) are alloys with five or more principal elements. The
concept of high entropy introduces a new way of developing advanced materials
with unique properties that cannot be achieved by a classical alloying approach
based on one dominant element. This paper describes some important aspects of
HEAs including core effects, phases and crystal structures, mechanical
properties, notations, process techniques.

Keywords

High entropy alloys, metals and alloys, entropy, enthalpy, solid solutions

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