Influence of position and laser power on thermal history and microstructure of direct laser fabricated Ti–6Al–4V samples

Liang Qian; Junfa Mei; Jing Liang; Xinhua Wu

doi:10.1179/174328405X21003

Influence of position and laser power on thermal history and microstructure of direct laser fabricated Ti–6Al–4V samples

Liang Qian, Junfa Mei, Jing Liang, Xinhua Wu

Research output: Contribution to journal › Article

97 Citations (Scopus)

Abstract

A finite element model has been established and used to predict the temperature history of direct laser fabricated (DLFed) Ti-6Al-4V thin wall samples. The effects of laser power and the effect of location within a sample on its temperature history have been modelled and compared with temperatures measured during DLF using thermocouples. The thermal history of the material has been correlated with the observed differences in the microstructures obtained at different locations in a given sample or for a given location in samples obtained at different laser powers.

Original language	English
Pages (from-to)	597-605
Number of pages	9
Journal	Materials Science and Technology
Volume	21
Issue number	5
DOIs	https://doi.org/10.1179/174328405X21003
Publication status	Published - 1 May 2005

Keywords

martensite transformation
Ti alloys
finite element modelling
laser fabrication

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10.1179/174328405X21003

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abstract = "A finite element model has been established and used to predict the temperature history of direct laser fabricated (DLFed) Ti-6Al-4V thin wall samples. The effects of laser power and the effect of location within a sample on its temperature history have been modelled and compared with temperatures measured during DLF using thermocouples. The thermal history of the material has been correlated with the observed differences in the microstructures obtained at different locations in a given sample or for a given location in samples obtained at different laser powers.",

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T1 - Influence of position and laser power on thermal history and microstructure of direct laser fabricated Ti–6Al–4V samples

AU - Qian, Liang

AU - Mei, Junfa

AU - Liang, Jing

AU - Wu, Xinhua

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AB - A finite element model has been established and used to predict the temperature history of direct laser fabricated (DLFed) Ti-6Al-4V thin wall samples. The effects of laser power and the effect of location within a sample on its temperature history have been modelled and compared with temperatures measured during DLF using thermocouples. The thermal history of the material has been correlated with the observed differences in the microstructures obtained at different locations in a given sample or for a given location in samples obtained at different laser powers.

KW - martensite transformation

KW - Ti alloys

KW - finite element modelling

KW - laser fabrication

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JF - Materials Science and Technology

IS - 5

ER -

Influence of position and laser power on thermal history and microstructure of direct laser fabricated Ti–6Al–4V samples

Abstract

Keywords

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