Modelling of the Solidifying Microstructure of Inconel 718: Quasi-Binary Approximation

Autor: Nikolai Kropotin, Yindong Fang, Chu Yu, Martin Seyring, Katharina Freiberg, Stephanie Lippmann, Tatu Pinomaa, Anssi Laukkanen, Nikolas Provatas, Peter K. Galenko

Publikováno v: Modelling, Vol 4, Iss 3, Pp 323-335 (2023)

The prediction of the equilibrium and metastable morphologies during the solidification of Ni-based superalloys on the mesoscopic scale can be performed using phase-field modeling. In the present paper, we apply the phase-field model to simulate the

Externí odkaz: https://doaj.org/article/4aa53dc8a376426baea8bce271cf941a

Process-Structure-Properties-Performance Modeling for Selective Laser Melting

Autor: Tatu Pinomaa, Ivan Yashchuk, Matti Lindroos, Tom Andersson, Nikolas Provatas, Anssi Laukkanen

Publikováno v: Metals, Vol 9, Iss 11, p 1138 (2019)

Selective laser melting (SLM) is a promising manufacturing technique where the part design, from performance and properties process control and alloying, can be accelerated with integrated computational materials engineering (ICME). This paper demons

Externí odkaz: https://doaj.org/article/0ad37caddb6c40cfa3b6113df6b36b7b

Laser Powder Bed Fusion Of High Carbon Tool Steels

Autor: Joni Reijonen, Atte Antikainen, Juha Lagerbom, Matti Lindroos, Tatu Pinomaa, Tomi Lindroos

Publikováno v: Reijonen, J, Antikainen, A, Lagerbom, J, Lindroos, M, Pinomaa, T & Lindroos, T 2022, Laser Powder Bed Fusion Of High Carbon Tool Steels . in World PM2022 Congress Proceedings . European Powder Metallurgy Association (EPMA), World PM2022 Congress & Exhibition, Lyon, France, 9/10/22 .
VTT Technical Research Centre of Finland-PURE

Tool steels are martensitic steels alloyed with carbide forming elements, thus having high strength, hardness and wear resistance. These characteristics, however, make them costly materials to shape into complex geometries. Laser powder bed fusion (P

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::138733fffa8d22d92f8e3c2b1f513acc
https://cris.vtt.fi/en/publications/d88f019b-6b0b-42c0-85cf-31ec1e537ed2

Opportunities of Physics-based Multi-Scale Modeling Tools in assessing intra-grain heterogeneities, polycrystal properties and residual stresses of AM metals

Autor: Matti Lindroos, Tatu Pinomaa, Anssi Laukkanen, Atte Antikainen, Juha Lagerbom, Joni Reijonen, Tomi Lindroos, Tom Andersson

Publikováno v: Lindroos, M, Pinomaa, T, Laukkanen, A, Antikainen, A, Lagerbom, J, Reijonen, J, Lindroos, T & Andersson, T 2022, Opportunities of Physics-based Multi-Scale Modeling Tools in assessing intra-grain heterogeneities, polycrystal properties and residual stresses of AM metals . in World PM2022 Congress Proceedings . European Powder Metallurgy Association (EPMA), World PM2022 Congress & Exhibition, Lyon, France, 9/10/22 .
VTT Technical Research Centre of Finland-PURE

Microstructure is the origin of the properties and performance for additively manufactured metals. Rapid solidification enable the formation of various grain/phase structures as well as solute segregation and initial dislocation structures that all c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::119b8cea6221155fac17886a8501b8b8
https://cris.vtt.fi/en/publications/8f957e64-4008-4a89-bee3-0fe115f9fefb

Multiscale analysis of crystalline defect formation in rapid solidification of pure aluminium and aluminium–copper alloys

Autor: Tatu Pinomaa, Matti Lindroos, Paul Jreidini, Matias Haapalehto, Kais Ammar, Lei Wang, Samuel Forest, Nikolas Provatas, Anssi Laukkanen

Publikováno v: Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Pinomaa, T, Lindroos, M, Jreidini, P, Haapalehto, M, Ammar, K, Wang, L, Forest, S, Provatas, N & Laukkanen, A 2022, ' Multiscale analysis of crystalline defect formation in rapid solidification of pure aluminium and aluminium-copper alloys ', Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 380, no. 2217, 20200319 . https://doi.org/10.1098/rsta.2020.0319

Rapid solidification leads to unique microstructural features, where a less studied topic is the formation of various crystalline defects, including high dislocation densities, as well as gradients and splitting of the crystalline orientation. As the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13fe91b97e5e12cbd57b6fe7572cf725
http://europepmc.org/articles/PMC8721336