Grain Growth Simulation of Precipitated Phase on Surface and Evaluation of the Residual Stress Distribution

Takuya Uehara

doi:10.4028/www.scientific.net/AMR.538-541.322

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 538-541Grain Growth Simulation of Precipitated Phase on...

Grain Growth Simulation of Precipitated Phase on Surface and Evaluation of the Residual Stress Distribution

Abstract:

Grain growth simulations considering heat treatment process were carried and the change in microstructure on the surface was regenerated. Stress-dependency of the phase transformation from original phase to precipitate was introduced into the conventional multi-phase-field model, and stress distributions were calculated. Volumetric dilatation was considered as a source of the stress generation, and a slight variation in the dilatation coefficient was applied for each grain. As a result, a mosaic pattern in the stress distribution correlated to the polycrystalline microstructure was obtained. The residual stress distribution was also calculated under three different conditions, and revealed to vary depending on the microstructure obtained.

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Periodical:

Advanced Materials Research (Volumes 538-541)

Pages:

322-325

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.538-541.322

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Online since:

June 2012

Authors:

Takuya Uehara

Keywords:

Computer Simulation, Grain Growth, Heat Treatment, Microstructure, Phase Field Model, Precipitation, Residual Stress

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References

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