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
收藏
页码：4161 / 4172
页数：11
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