Effect of heat treatments on microstructure/small-scale properties of additive manufactured Ti-6Al-4V

被引：0

作者：

Muztahid Muhammad

Jonathan W. Pegues

Nima Shamsaei

Meysam Haghshenas

机构：

[1] University of North Dakota,Department of Mechanical Engineering

[2] Auburn University,Department of Mechanical Engineering

[3] Auburn University,National Center for Additive Manufacturing Excellence (NCAME)

来源：

The International Journal of Advanced Manufacturing Technology | 2019年 / 103卷

关键词：

Ti-6Al-4V; Additive manufacturing; Heat treatment; Nanoindentation; Artificial aging;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In the present study, the effect of various heat treatments on the microstructure and micromechanical properties of a Ti-6Al-4V alloy processed by a laser powder bed fusion (L-PBF) technique is investigated. Heat treatment cycles employed in this study include solutionizing at 950 °C (for 1 h) followed by three different cooling rates (water quenching, air cooling, and furnace cooling) as well as solutionizing followed by water quenching and artificial aging. To assess the small-scale properties, a nanoindentation testing technique is employed. Microstructural quantitative analyses (i.e., optical microscopy and scanning electron microscopy) were performed extensively on the as-fabricated and heat-treated samples. Artificially aged specimens showed the highest microhardness of all the heat-treated samples, followed by air-cooled and furnace-cooled samples.

引用

页码：4161 / 4172

页数：11

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