Combination of tracer and chemical diffusion experiments in CoCrFeMnNi FCC high entropy alloys

Basic data for this talk

Type of talkscientific talk
Name der VortragendenDaniel Gaertner
Date of talk27/06/2017
Talk languageEnglish

Information about the event

Name of the event13th International Conference on Diffusion in Solids and Liquids - DSL2017
Event period26/06/2017 - 30/06/2017
Event locationAustria Trend Hotel Savoyen Vienna, Wien, Österreich
Event websitehttp://www.dsl-conference.com/2017/

Abstract

High entropy alloys are multicomponent alloys, which have a large number of constituting elements in equiatomic or nearly equiatomic concentrations. The diffusion kinetics in CoCrFeMnNi alloys is investigated by a combination of radiotracer and diffusion couple techniques in a way that the composition dependencies of the tracer diffusion coefficients of ⁶³Ni, ⁵¹Cr, ⁵⁷Co, ⁵⁹Fe and ⁵⁴Mn are determined. The both types of concentration profiles are simulated using a CALPHAD-type description. The components are characterized by significantly different diffusion rates, with Mn being the fastest elements and Ni and Co being the slowest ones.

Speakers from the University of Münster

Gaertner, Daniel
Professorship of Materials Physics (Prof. Wilde)