EBSD Examination of Argon Ion Bombarded Ti-6Al-4V Samples Produced with DMLS Technology

David Pammer,Peter Janos Szabo,Zoltan Keresztes

doi:10.3311/ppme.13821

Abstract

Additive manufacturing (AM) indicated great technological increase in the last years. Primarily development of new methods, new computer softwares and more useable materials are responsible for this progression. AM has numerous advantages that cause the appearance of it in almost every field of industry. However this widely spread technology has many under examined properties, especially those, that uses metal as raw material. One of these less understood properties is the behavior of grains during the melting phase and the microstructure after production. The main aim of this study is to examine the microstructure of ion bombarded – using argon - AM produced Ti-6Al-4V samples applying EBDS investigation, measuring the grain size, and the orientation of the grains.

Highlights

Additive manufacturing is a rapidly developing technology which can be found almost in every field of industry and beyond
The main aim of this study is to examine the microstructure of ion bombarded – using argon - Additive manufacturing (AM) produced Ti-6Al-4V samples applying EBDS investigation, measuring the grain size, and the orientation of the grains
3 Results After polishing and Ar ion bombardment the chemical composition was specified in different areas of the sample

Summary

Introduction

Additive manufacturing is a rapidly developing technology which can be found almost in every field of industry and beyond. The first step of this kind of production is always a well prepared model using some sort of CAD program. There are numerous variations of this technology depending on the raw material, the energy source that make contact between the layers, etc. The main advantages of AM – comparing to other manufacturing – are to customized much more freely the product, to prepare more difficult, complex and heterogeneous geometries, using less specialized tools, significantly reducing production time and costs, while decreasing postproduction time and steps [2]. The improvement of laser energy sources causes continuously increasing number of usable raw materials. Titanium alloys take special place in these materials, because in a traditional way, the production is quite expensive and difficult, especially in biomedical engineering, where very complex and customized geometries are needed

Objectives

Methods

Results

Conclusion