Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Sami Koskenniska"'
Autor:
Jyrki Miettinen, Sami Koskenniska, Aarne Pohjonen, Jari Larkiola, Jukka Kömi, Seppo Louhenkilpi, Mahesh C. Somani
Publikováno v:
Metallurgical and Materials Transactions B. 52:1640-1663
Funding Information: This research was conducted within the framework of the Genome of Steel project funded by the Academy of Finland (Project #311934). Publisher Copyright: © 2021, The Author(s). Copyright: Copyright 2021 Elsevier B.V., All rights
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56df1e8395a8f06ccc0285a63b9f7f9e
https://doi.org/10.1007/s11663-021-02130-9
https://doi.org/10.1007/s11663-021-02130-9
Publikováno v:
Materials Science Forum. 1016:1153-1158
We have determined different phase fractions from microscopy images using semi-automated image analysis fitting technique, and in addition we have classified each phase according to its hardness. The distribution of grayscale pixels of different phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb4e9a0ec868dc47d921566dc46ee26c
https://doi.org/10.4028/www.scientific.net/msf.1016.1153
https://doi.org/10.4028/www.scientific.net/msf.1016.1153
Autor:
Jukka Kömi, Joonas Ilmola, Jari Larkiola, Sampo Uusikallio, Sami Koskenniska, Aarne Pohjonen, Jussi Paavola
Publikováno v:
Procedia Manufacturing. 50:488-491
Accurate control of the temperature of the workpiece is crucial when carrying out thermal processing of steel. Effective heat transfer coefficient for water cooling of hot rolled steel was calibrated using spray nozzles with different amounts of wate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29064aa493df21449fd7d3444e34ccf9
https://doi.org/10.1016/j.promfg.2020.08.088
https://doi.org/10.1016/j.promfg.2020.08.088
Autor:
Jyrki Miettinen, Mahesh Somani, Ville-Valtteri Visuri, Sami Koskenniska, Seppo Louhenkilpi, Timo Fabritius, Jukka Kömi
InterDendritic Solidification (IDS) is a thermodynamic–kinetic software combined with a microstructure tool developed to simulate the nonequilibrium solidification (non-EQS) of steels. Herein, its main calculation module, solidification (SOL), is i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8ed20d61f8c167a12c9a9f330dcd5e6
http://urn.fi/urn:nbn:fi-fe2022111866199
http://urn.fi/urn:nbn:fi-fe2022111866199
Autor:
Jyrki Miettinen, Mahesh C. Somani, Ville-Valtteri Visuri, Timo Fabritius, Seppo Louhenkilpi, Sami Koskenniska
The aim of this work was to derive new quality criteria based on steel composition and cooling pattern for continuous casting and for the subsequent cooling and reheating processes. The criteria were devised based on the outputs of multiphysics simul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee67c99b27cfe825f381187f3046ae48
http://urn.fi/urn:nbn:fi-fe20201218101427
http://urn.fi/urn:nbn:fi-fe20201218101427
The growth of prior austenite grains (PAG) of low alloyed martensitic steel is proven to be one of the key attributes contributing to the mechanical properties of ultrahigh-strength steels. The mean linear intercept -method (MLI) is traditionally use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd7d1c6f9d5308179454a5b92cc0fe05
http://urn.fi/urn:nbn:fi-fe2020091069229
http://urn.fi/urn:nbn:fi-fe2020091069229
Autor:
Antti Kaijalainen, Sami Koskenniska, David Porter, Jukka Kömi, Saara Mehtonen, T. Pikkarainen
The effect of as-cast structure and macrosegregation on the mechanical properties of a direct-quenched low-alloy martensitic ultrahigh-strength aluminum killed and calcium treated steel cast at different superheats was studied. Samples from the casti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d79c71d910b5deabd9b3a31e8cd1c4db
http://urn.fi/urn:nbn:fi-fe2020110389110
http://urn.fi/urn:nbn:fi-fe2020110389110
Autor:
Timo Fabritius, Jyrki Miettinen, Mahesh C. Somani, Ville-Valtteri Visuri, Sami Koskenniska, Jukka Kömi
In this study, a set of thermodynamic, kinetic, and microstructure data is presented to simulate the non-equilibrium solidification of Fe-Al-Mn-Si-C alloys. The data were further validated with the experimental measurements and then used in a thermod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f703e2ee1ec41eac3c8c2c2d47e18cb5
http://urn.fi/urn:nbn:fi-fe202101192093
http://urn.fi/urn:nbn:fi-fe202101192093
Autor:
Juha Jokisaari, Joonas Ilmola, Jari Larkiola, Olli Leinonen, Juha Pyykkönen, Aarne Pohjonen, Oskari Seppälä, Sami Koskenniska
Dual-phase steels are generally used in the car industry due to high tensile strength and good formability, which are obtained by a mixture of bainite and ferrite phases. This microstructure is achieved through slow rate coil cooling. However, the ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4119312d9e11f6ddfac9546ab1011481
http://urn.fi/urn:nbn:fi-fe202101181983
http://urn.fi/urn:nbn:fi-fe202101181983
Autor:
Seppo Louhenkilpi, Sami Koskenniska, Jyrki Miettinen, Jari Larkiola, Jukka Kömi, Aarne Pohjonen, Mahesh C. Somani
New CCT equations have been developed and optimized to simulate the start temperatures of the austenite decomposition process in low-alloyed steels using experimental CCT data published in the literature. Exceptionally, this optimization does not app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01e0b710360be5c1ac7335fb37ff7aef
https://aaltodoc.aalto.fi/handle/123456789/42157
https://aaltodoc.aalto.fi/handle/123456789/42157