Numerical analysis on deformation behavior of High Entropy Alloy (HEA) under compression test

Nordin, Norhuda Hidayah and Mohamad, Faiz Syazwan and lsmail, Izham lzzat and Sulaiman, Mohd Hafis (2022) Numerical analysis on deformation behavior of High Entropy Alloy (HEA) under compression test. In: Proceedings of the 3rd Malaysian International Tribology Conference, 05-06 July 2021, Virtual conference.

PDF - Published Version Restricted to Repository staff only Download (8MB) | Request a copy

Abstract

The mechanical properties of a material reflect the relationship between its response to or deformation from an applied load or force. It determines the range of usefulness of a material and establishes the service life that can be expected. The importance of mechanical properties includes strength, hardness, ductility and stiffness. These properties are ascertained by performing carelully designed laboratory experiments that replicate as closely as possible the service conditions. The introduction to novel high entropy alloys (HEAs) which consists of multicomponent elements have been attracting considerable attention all over the world, particularly in the recent years. HEAs reported to exhibit exceptional mechanical properties at various conditions of surrounding and expected to be applied in engineering application. This paper discusses the mechanical properties of FeCoNiAIBSi HEA under compression condition with increasing of boron content. The deformation behaviour during this condition of the FIEA was analysed numericaily by using LS-Dyna software. The piecewise linear plasticity material model was used to investigate the deformation of the HEA. An inverse finite element method was introduced to determine the optimum friction properties of each model. Increasing of friction coefficient was proven to increase the strength of the material. The validation on the numerical analysis was done by comparing the simulated stress-strain curve and geometry with the experimental value for each HEA sample. The deformation behavior was discussed through the morphology analysis of the samples. It was found that increase in boron content changed the structure of the FIEA and thus altered its mechanical properties.

Item Type:	Conference or Workshop Item (Slide Presentation)
Uncontrolled Keywords:	High entropy alloys (HEA) ' Quasi-static compression . Finite element analysis . Inverse method . Stress-strain curve . Bulging effect
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	DR NORHUDA HIDAYAH NORDIN
Date Deposited:	22 Jun 2022 17:05
Last Modified:	22 Jun 2022 17:07
URI:	http://irep.iium.edu.my/id/eprint/98422

Actions (login required)

View Item