As-HIP Microstructure Of EBM Fabricated Shell Components
Paper i proceeding, 2016

Electron Beam Melting (EBM) was used to build Ti-6Al-4V cylindrical shell samples with different wall thickness filled with powder. Built shell samples were HIPed and the difference in microstructure between the EBM-built walls and densified powder inside the shell components was studied as well as the cohesion between these two regions. Components characterization utilizing LOM and SEM+EBSD indicates that columnar grain growth was consistent before and after HIP in the EBM-built part of the components (walls), whereas the densified material in the center of the component had a fine isotropic microstructure, characteristic for HIPed material. The combination of EBM and HIP is shown to be an attractive way of manufacturing complex-shape full density components for high performance applications, involving shortening of built time in the EBM-processing and lead time in capsule fabrication for HIP.

microstructure of EBM-build components

hot isostatic pressing

Additive manufacturing

EBM of Ti64 shell structures

Författare

Alexander Leicht

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Maheswaran Vattur Sundaram

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Yiming Yao

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Eduard Hryha

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Lars Nyborg

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Lars-Erik Rännar

Mittuniversitetet

Andrei Koptioug

Mittuniversitetet

Karin Frisk

Swerea KIMAB

MAGNUS AHLFORS

Quintus Technologies AB

World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016; Hamburg; Germany; 9 October 2016 through 13 October 2016

Innovativ komponentteknologi via pulverteknik (Steg 2)

VINNOVA, 2014-05-15 -- 2016-08-25.

Drivkrafter

Hållbar utveckling

Styrkeområden

Produktion

Materialvetenskap

Ämneskategorier

Bearbetnings-, yt- och fogningsteknik

Metallurgi och metalliska material

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2018-07-29