Physical Properties of Martensitic Phase Transformations in Fe - 18.79%Mn-4.53%Ni Alloys

Year 2016, Volume: 11 Issue: 1, 42 - 50, 24.05.2016

Nermin Kahveci Yağcı , Dilek Türk

Abstract

In this study, the microstructure and magnetic properties of martensite transformation induced with thermal effect were investigated in Fe-18.79%Mn- 4.53%Ni alloy. Microstructures of thermal induced martensite were observed with Scanning Electron Microscope (SEM) and it was observed that the amount of martensite was increased in the investigation of the microstructure when the amount of temperatures was increased different rates. Mössbauer spectroscopy was used to determine volume fraction of thermal-induced martensites formed in austenite phase. X-ray analysis is method was used to determine the changes in lattice parameters. 

Keywords

Martensitic phase transformation, thermal-induced martensite, Mössbauer spectroscopy, SEM, X-ray

Fe-%18,79Mn-%4,53Ni Alaşımında Termal Etki ile Oluşan Martensitik Faz Dönüşümlerinin Fiziksel Özelliklerinin İncelenmesi

Abstract

Bu çalışmada, Fe-%18,79Mn-%4,53Ni alaşımında termal etki ile oluşturulan martensitik faz dönüşümlerinin kristalografik ve manyetik özellikleri araştırıldı. Taramalı Elektron Mikroskobu (SEM) ile termal etkili martensitelerin mikroyapıları incelendi. Mikroyapı incelemelerinde, termal etkili martensite yapı miktarının uygulanan sıcaklık derecelerinin artması ile arttığı gözlendi. Austenite faz içerisinde oluşan termal etkili martensite fazın hacim yüzdeleri Mössbauer Spektrometresi tekniği yoluyla belirlendi. X-ışını tekniği ile örgü parametrelerinde meydana gelen değişimler tespit edildi.

Keywords

Martensitik faz Dönüşümü, termal etkili martensite, Mössbauer spektrometresi, SEM, X-ray

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