An experimental and modelling study of laser fabricated samples

L. Qian, J. Mei, X. Wu

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

5 Citations (Scopus)

Abstract

Solid samples about 20mm long, 20mm in breadth and about 2mm thick of Ti-6Al-4V have been produced from powder using direct laser fabrication. The temperature histories of individual layers have been measured by inserting thermocouples during laser fabrication. The changes in microstructure along the height of the laser fabricated samples have been characterized using optical, scanning electron and transmission electron microscopy, together with X-ray diffraction. A 3D-transient finite element model using ABAQUS has been developed which predicts thermal history during laser fabrication with reasonable accuracy. The thermal histories of different parts of the sample have been used to interpret the influence of the processing variables on the microstructures.

Original languageEnglish
Title of host publicationSupplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006
Pages3637-3642
Number of pages6
EditionPART 4
Publication statusPublished - 1 Dec 2007
Externally publishedYes
Event5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 - Vancouver, Canada
Duration: 4 Jul 20068 Jul 2006

Publication series

NameMaterials Science Forum
NumberPART 4
Volume539-543
ISSN (Print)0255-5476

Conference

Conference5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
CountryCanada
CityVancouver
Period4/07/068/07/06

Keywords

  • Finite element
  • Martensite
  • Thermal modelling
  • Ti-6Al-4V

Cite this

Qian, L., Mei, J., & Wu, X. (2007). An experimental and modelling study of laser fabricated samples. In Supplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006 (PART 4 ed., pp. 3637-3642). (Materials Science Forum; Vol. 539-543, No. PART 4).