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Effect of convex platform on stress distribution in nickel-based superalloy plate produced by Vacuum Countergravity Casting

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Abstract

The effect of convex platform shape on stress distribution in nickel-based superalloy thin plate produced by Vacuum Countergravity Casting (VCC) has been studied by numerical simulation. The result shows that convex platform significantly changes the stress distribution in its adjacent area. The stress-affected zone (SAZ) of both types of convex platform appears uneven. SAZ is significantly greater in the diagonal direction than that in the horizontal direction. The angle effect contribution rate (AECR) is defined. When S1=1mm and S=6, AECR has the larger values in both convex platform shapes, and AECR of square convex platform is even up to 7.589. When S1 is larger than 2mm, the relationship between angle effect and S1 or S is not obvious for square convex platform.

Original languageEnglish
Title of host publicationMaterials Science, Computer and Information Technology
PublisherTrans Tech Publications Ltd
Pages927-930
Number of pages4
ISBN (Print)9783038351733
DOIs
StatePublished - 2014
Event4th International Conference on Materials Science and Information Technology, MSIT 2014 - Tianjin, China
Duration: 14 Jun 201415 Jun 2014

Publication series

NameAdvanced Materials Research
Volume989-994
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Conference

Conference4th International Conference on Materials Science and Information Technology, MSIT 2014
Country/TerritoryChina
CityTianjin
Period14/06/1415/06/14

Keywords

  • Nickel-based superalloy
  • Stress-affected zone
  • Vacuum Countergravity casting
  • Wall thickness differences

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