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Effects of time per layer and part geometry on thermal history and microcracking in the fabrication of nickel superalloy samples by laser powder bed fusion

Description/Abstract:

In this work, the purpose of the current study is to understand the effects of time per layer and part geometry on microcracking behavior...

Keyword:

Constricted geometry, Inconel 738 LC, Laser powder bed fusion, Microcracking, Thermal analysis, and Time per layer

Resource Type:

Article

Author:

Masahiro Kusano, Yusuke Takata, Atsushi Yumoto, and Makoto Watanabe

Journal:

Additive Manufacturing

Date Uploaded:

10/04/2024
Solute segregation in a rapidly solidified Hastelloy-X Ni-based superalloy during laser powder bed fusion investigated by phase-field and computational thermal-fluid dynamics simulations

Description/Abstract:

Solute segregation significantly affects material properties and is a critical issue in the laser powder-bed fusion (LPBF) additive manuf...

Keyword:

Computational thermal-fluid dynamics simulation, Hastelloy-X nickel-based superalloy, Laser powder-bed fusion, Phase-field method, and Solute element segregation

Resource Type:

Article

Author:

Masayuki Okugawa, Kenji Saito, Haruki Yoshima, Katsuhiko Sawaizumi, Sukeharu Nomoto, Makoto Watanabe, Takayoshi Nakano, and Yuichiro Koizumi

Journal:

Additive Manufacturing

Date Uploaded:

02/04/2024