Index Catalog // MDR

Description/Abstract:: The nickel-based superalloy Inconel is considered suitable for near-net-shape manufacturing using additive techniques, primarily due to i...
Keyword:: Inconel 718 powder, Inconel 738LC powder, Ti-6Al-4V powder, additive manufacturing, laser absorptivity, and powder-bed fusion
Resource Type:: Article
Author:: Hiroshi Honda and Makoto Watanabe
Journal:: MATERIALS TRANSACTIONS
Date Uploaded:: 26/12/2024

Description/Abstract:: Additive manufacturing is one of the potent manufacturing processes for jet engine parts. There are several reports on the fabrication of...
Keyword:: Laser powder bed fusion, flat-top laser, single crystal
Resource Type:: ProceedingsArticle
Author:: Tomonori Kitashima, Dennis Edgard Jodi, and Makoto Watanabe
Journal:: Proceedings of the 15th World Conference on Titanium,15th World Conference on Titanium Chapter 2: Aerospace Applications
Date Uploaded:: 17/12/2024

Description/Abstract:: The stress–strain curve (SSC) prediction for additively manufactured as-build metal materials with laser powder bed fusion (LPBF) is a le...
Keyword:: additive manufacturing, crystal plasticity simulations, machine learning regression, representative volume element reconstruction, and stress–strain curve simulation/prediction
Resource Type:: Article
Author:: Dmitry S. Bulgarevich and Makoto Watanabe
Journal:: Scientific Reports
Date Uploaded:: 17/12/2024

Description/Abstract:: This paper is a study of the model constant of the Voller-Prakash model: the mushy zone constant (C), which determines the flow resistanc...
Keyword:: Keyhole pore formation, Laser powder bed fusion, Multiphysics CFD simulation, Mushy zone flow resistance, and Voller-Prakash model
Resource Type:: Article
Author:: Jun Katagiri, Sukeharu Nomoto, Masahiro Kusano, and Makoto Watanabe
Journal:: Results in Engineering
Date Uploaded:: 10/12/2024

Description/Abstract:: Modified 9Cr-1Mo steel was manufactured via laser powder bed fusion (LPBF) using gas atomized powders under various building conditions. ...
Keyword:: Laser powder bed fusion, heat resistant steel, and microstructure
Resource Type:: ProceedingsArticle
Author:: Tomotaka Hatakeyama, Kota Sawada, Masaru Suzuki, and Makoto Watanabe
Journal:: Advances in Materials Technology for Power Plants
Date Uploaded:: 04/12/2024

Description/Abstract:: This study proposes a Mode I double cantilever beam (DCB) test method for debonding thick elastic adhesive layers. The approach integrate...
Keyword:: Adhesive layer, Bernulli–Euler beam, DCB test, Elasticity, Energy release rate, and Winkler’s foundation
Resource Type:: Article
Author:: Tetsuya Morimoto, Hisaya Katoh, Yuichi Ishida, Eiichi Hara, Masahiro Kusano, Kimiyoshi Naito, Makoto Watanabe, Kiyoka Takagi, Keiji Arai, and Koichi Hasegawa
Journal:: Engineering Fracture Mechanics
Date Uploaded:: 21/11/2024

Description/Abstract:: Feedforward/feedback control of laser powder bed fusion (L-PBF) was proposed over a decade ago but remains challenging. Despite numerous ...
Keyword:: Laser powder bed fusion, Nickel-base superalloy, Part-scale finite element thermal analysis, Temperature control, and Time per layer
Resource Type:: Article
Author:: Masahiro Kusano and Makoto Watanabe
Journal:: Journal of Manufacturing Processes
Date Uploaded:: 21/11/2024

Description/Abstract:: Oxide growth and O dissolution during the oxidation of an α-Ti alloy at 973 K were simulated using the finite volume method coupled with ...
Keyword:: Kinetic modeling, Oxidation, Oxide growth, Oxygen dissolution, and Titanium alloy
Resource Type:: Article
Author:: Tomonori Kitashima, Takanobu Hiroto, and Makoto Watanabe
Journal:: Journal of Materials Research and Technology
Date Uploaded:: 30/09/2024

Description/Abstract:: A near-β Ti alloy with a highly anisotropic single-crystal-like β grain structure was fabricated on a polycrystalline pure-Ti substrate b...
Keyword:: Laser powder bed fusion, Precipitation, Texture, Titanium, and Variant selection
Resource Type:: Article
Author:: Tomonori Kitashima, Takanobu Hiroto, Dennis Edgard Jodi, and Makoto Watanabe
Journal:: Materials & Design
Date Uploaded:: 30/09/2024

Description/Abstract:: Modified 9Cr-1Mo steel was manufactured using laser powder bed fusion (LPBF). The as-built LPBF-sample microstructure comprised columnar ...
Keyword:: Creep, Ferritic steels, Laser powder bed fusion, Precipitation, and δ-ferrite
Resource Type:: Article
Author:: Tomotaka Hatakeyama, Kota Sawada, Masahiro Kusano, and Makoto Watanabe
Journal:: Additive Manufacturing
Date Uploaded:: 26/09/2024

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