Prediction of Microporosity in Complex Thin-Wall Castings with the Dimensionless Niyama Criterion

The dimensionless Niyama criterion was used to predict the formation of microporosity in nickel-based superalloy casting, which extended the model application from a simple plate casting to complex thin-wall superalloy casting. The physical characteristics of the superalloy were calculated by JMatPr...

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Autores principales: Kang, Maodong, Gao, Haiyan, Wang, Jun, Ling, Lishibao, Sun, Baode
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2013
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5452498/
https://www.ncbi.nlm.nih.gov/pubmed/28809243
http://dx.doi.org/10.3390/ma6051789
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author Kang, Maodong
Gao, Haiyan
Wang, Jun
Ling, Lishibao
Sun, Baode
author_facet Kang, Maodong
Gao, Haiyan
Wang, Jun
Ling, Lishibao
Sun, Baode
author_sort Kang, Maodong
collection PubMed
description The dimensionless Niyama criterion was used to predict the formation of microporosity in nickel-based superalloy casting, which extended the model application from a simple plate casting to complex thin-wall superalloy casting. The physical characteristics of the superalloy were calculated by JMatPro software. The relation between the volume percentage of microporosity and the dimensionless Niyama values were constructed. Quantitative metallographic measurements of the microporosity of the practical thin-wall casting were carried out. The prediction agreed well with the experiment in general, except for some thick-wall sites in the casting.
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spelling pubmed-54524982017-07-28 Prediction of Microporosity in Complex Thin-Wall Castings with the Dimensionless Niyama Criterion Kang, Maodong Gao, Haiyan Wang, Jun Ling, Lishibao Sun, Baode Materials (Basel) Article The dimensionless Niyama criterion was used to predict the formation of microporosity in nickel-based superalloy casting, which extended the model application from a simple plate casting to complex thin-wall superalloy casting. The physical characteristics of the superalloy were calculated by JMatPro software. The relation between the volume percentage of microporosity and the dimensionless Niyama values were constructed. Quantitative metallographic measurements of the microporosity of the practical thin-wall casting were carried out. The prediction agreed well with the experiment in general, except for some thick-wall sites in the casting. MDPI 2013-05-07 /pmc/articles/PMC5452498/ /pubmed/28809243 http://dx.doi.org/10.3390/ma6051789 Text en © 2013 by the authors. licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Kang, Maodong
Gao, Haiyan
Wang, Jun
Ling, Lishibao
Sun, Baode
Prediction of Microporosity in Complex Thin-Wall Castings with the Dimensionless Niyama Criterion
title Prediction of Microporosity in Complex Thin-Wall Castings with the Dimensionless Niyama Criterion
title_full Prediction of Microporosity in Complex Thin-Wall Castings with the Dimensionless Niyama Criterion
title_fullStr Prediction of Microporosity in Complex Thin-Wall Castings with the Dimensionless Niyama Criterion
title_full_unstemmed Prediction of Microporosity in Complex Thin-Wall Castings with the Dimensionless Niyama Criterion
title_short Prediction of Microporosity in Complex Thin-Wall Castings with the Dimensionless Niyama Criterion
title_sort prediction of microporosity in complex thin-wall castings with the dimensionless niyama criterion
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5452498/
https://www.ncbi.nlm.nih.gov/pubmed/28809243
http://dx.doi.org/10.3390/ma6051789
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