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- Title
Prediction of Microporosity in Complex Thin-Wall Castings with the Dimensionless Niyama Criterion.
- Authors
Maodong Kang; Haiyan Gao; Jun Wang; Lishibao Ling; Baode Sun
- Abstract
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.
- Subjects
MICROPOROSITY; METALLOGRAPHIC specimens; HEAT resistant alloys; METALLOGRAPHY; GRINDING &; polishing; NICKEL
- Publication
Materials (1996-1944), 2013, Vol 6, Issue 6, p1789
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma6051789