Microstructure Refinement in W-Y2O3 Alloy Fabricated by Wet Chemical Method with Surfactant Addition and Subsequent Spark Plasma Sintering

Abstract With the aim of preparing high performance oxide-dispersion-strengthened tungsten based alloys by powder metallurgy, the W-Y2O3 composite nanopowder precursor was fabricated by an improved wet chemical method with anion surfactant sodium dodecyl sulfate (SDS) addition. It is found that the...

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Autores principales:	Zhi Dong, Nan Liu, Zongqing Ma, Chenxi Liu, Qianying Guo, Zeid Abdullah Alothman, Yusuke Yamauchi, Md. Shahriar A. Hossain, Yongchang Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9c546ddc34d646fc913d3680ed7ae318
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spelling	oai:doaj.org-article:9c546ddc34d646fc913d3680ed7ae3182021-12-02T16:06:41ZMicrostructure Refinement in W-Y2O3 Alloy Fabricated by Wet Chemical Method with Surfactant Addition and Subsequent Spark Plasma Sintering10.1038/s41598-017-06437-z2045-2322https://doaj.org/article/9c546ddc34d646fc913d3680ed7ae3182017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06437-zhttps://doaj.org/toc/2045-2322Abstract With the aim of preparing high performance oxide-dispersion-strengthened tungsten based alloys by powder metallurgy, the W-Y2O3 composite nanopowder precursor was fabricated by an improved wet chemical method with anion surfactant sodium dodecyl sulfate (SDS) addition. It is found that the employment of SDS can dramatically decrease W grain size (about 40 nm) and improve the size uniformity. What’s more, SDS addition can also remarkably improve the uniform dispersion of Y2O3 particles during the synthesis process. For the alloy whose powder precursor was fabricated by traditional wet chemical method without SDS addition, only a few Y2O3 dispersoids with size of approximate 10–50 nm distribute unevenly within tungsten grains. Nevertheless, for the sintered alloy whose powder precursor was produced by improved wet chemical method, the Y2O3 dispersoids (about 2–10 nm in size) with near spherical shape are dispersed well within tungsten grains. Additionally, compared with the former, the alloy possesses smaller grain size (approximate 700 nm) and higher relative density (99.00%). And a Vickers microhardness value up to 600 Hv was also obtained for this alloy. Based on these results, the employment of SDS in traditional wet chemical method is a feasible way to fabricate high performance yttria-dispersion-strengthened tungsten based alloys.Zhi DongNan LiuZongqing MaChenxi LiuQianying GuoZeid Abdullah AlothmanYusuke YamauchiMd. Shahriar A. HossainYongchang LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhi Dong Nan Liu Zongqing Ma Chenxi Liu Qianying Guo Zeid Abdullah Alothman Yusuke Yamauchi Md. Shahriar A. Hossain Yongchang Liu Microstructure Refinement in W-Y2O3 Alloy Fabricated by Wet Chemical Method with Surfactant Addition and Subsequent Spark Plasma Sintering
description	Abstract With the aim of preparing high performance oxide-dispersion-strengthened tungsten based alloys by powder metallurgy, the W-Y2O3 composite nanopowder precursor was fabricated by an improved wet chemical method with anion surfactant sodium dodecyl sulfate (SDS) addition. It is found that the employment of SDS can dramatically decrease W grain size (about 40 nm) and improve the size uniformity. What’s more, SDS addition can also remarkably improve the uniform dispersion of Y2O3 particles during the synthesis process. For the alloy whose powder precursor was fabricated by traditional wet chemical method without SDS addition, only a few Y2O3 dispersoids with size of approximate 10–50 nm distribute unevenly within tungsten grains. Nevertheless, for the sintered alloy whose powder precursor was produced by improved wet chemical method, the Y2O3 dispersoids (about 2–10 nm in size) with near spherical shape are dispersed well within tungsten grains. Additionally, compared with the former, the alloy possesses smaller grain size (approximate 700 nm) and higher relative density (99.00%). And a Vickers microhardness value up to 600 Hv was also obtained for this alloy. Based on these results, the employment of SDS in traditional wet chemical method is a feasible way to fabricate high performance yttria-dispersion-strengthened tungsten based alloys.
format	article
author	Zhi Dong Nan Liu Zongqing Ma Chenxi Liu Qianying Guo Zeid Abdullah Alothman Yusuke Yamauchi Md. Shahriar A. Hossain Yongchang Liu
author_facet	Zhi Dong Nan Liu Zongqing Ma Chenxi Liu Qianying Guo Zeid Abdullah Alothman Yusuke Yamauchi Md. Shahriar A. Hossain Yongchang Liu
author_sort	Zhi Dong
title	Microstructure Refinement in W-Y2O3 Alloy Fabricated by Wet Chemical Method with Surfactant Addition and Subsequent Spark Plasma Sintering
title_short	Microstructure Refinement in W-Y2O3 Alloy Fabricated by Wet Chemical Method with Surfactant Addition and Subsequent Spark Plasma Sintering
title_full	Microstructure Refinement in W-Y2O3 Alloy Fabricated by Wet Chemical Method with Surfactant Addition and Subsequent Spark Plasma Sintering
title_fullStr	Microstructure Refinement in W-Y2O3 Alloy Fabricated by Wet Chemical Method with Surfactant Addition and Subsequent Spark Plasma Sintering
title_full_unstemmed	Microstructure Refinement in W-Y2O3 Alloy Fabricated by Wet Chemical Method with Surfactant Addition and Subsequent Spark Plasma Sintering
title_sort	microstructure refinement in w-y2o3 alloy fabricated by wet chemical method with surfactant addition and subsequent spark plasma sintering
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9c546ddc34d646fc913d3680ed7ae318
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Microstructure Refinement in W-Y2O3 Alloy Fabricated by Wet Chemical Method with Surfactant Addition and Subsequent Spark Plasma Sintering

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