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

被引：116

作者：

Qian, L ^{[1
]}

Mei, J ^{[1
]}

Liang, J ^{[1
]}

Wu, X ^{[1
]}

机构：

[1] Univ Birmingham, IRC Mat, Birmingham B15 2TT, W Midlands, England

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2005年 / 21卷 / 05期

关键词：

laser fabrication; Ti alloys; finite element modelling; martensite transformation;

D O I：

10.1179/174328405X21003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：597 / 605

页数：9

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