Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Marek Tarraste"'
Publikováno v:
Proceedings of the Estonian Academy of Sciences, Vol 70, Iss 4, Pp 533-539 (2021)
Conventional vacuum sintering is, in general, inappropriate for producing manganese containing cermets because high vapour pressure combined with high sintering temperature of cermets (1400â1600 °C) causes considerable Mn loss through sublimation
Externí odkaz:
https://doaj.org/article/6f0f0a22330741b6b3bfda3ad6722efe
Publikováno v:
Medžiagotyra, Vol 25, Iss 2, Pp 202-206 (2019)
High price, limited availability and toxicity of cobalt motivates researchers and material engineers to find alternative binder systems for WC cemented carbides. Iron and iron alloys are promising candidates for complete cobalt substitution. Ferritic
Externí odkaz:
https://doaj.org/article/148077aa994e4049906f06ac4989308e
Autor:
Himanshu S. Maurya, Lauri Kollo, Marek Tarraste, Kristjan Juhani, Fjodor Sergejev, Konda Gokuldoss Prashanth
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 6, Iss 2, p 35 (2022)
The influence of laser pulse shaping on the formation of TiC-Fe-based cermets with different laser process parameters is investigated. The impact of pulse shaping and laser melting peak power on the microstructural development and mechanical properti
Externí odkaz:
https://doaj.org/article/f72a3a8c906f48dfb4d109f530161e31
Autor:
Taavi SIMSON, Priit KULU, Andrei SURŽENKOV, Riho TARBE, Dmitri GOLJANDIN, Marek TARRASTE, Mart VILJUS, Rainer TRAKSMAA
Publikováno v:
Medžiagotyra, Vol 23, Iss 3, Pp 249-253 (2017)
The article focuses on vacuum liquid phase sintered (PM) composite hardfacings and their behaviour under different abrasive wear conditions. Hardfacings studied contained 30 – 50 vol % fine, coarse or multimodal (fine and coarse) hardmetal reinforc
Externí odkaz:
https://doaj.org/article/7554d7bdb33b4201b3bcdf03c1a4e6d1
Autor:
Hans Tiismus, Ants Kallaste, Anouar Belahcen, Marek Tarraste, Toomas Vaimann, Anton Rassõlkin, Bilal Asad, Payam Shams Ghahfarokhi
Publikováno v:
Energies, Vol 14, Iss 5, p 1241 (2021)
Additively manufactured soft magnetic Fe-3.7%w.t.Si toroidal samples with solid and novel partitioned cross-sectional geometries are characterized through magnetic measurements. This study focuses on the effect of air gaps and annealing temperature o
Externí odkaz:
https://doaj.org/article/18354c6a294a4e3f9f2c4bd9acff7361
Publikováno v:
Medžiagotyra, Vol 21, Iss 3, Pp 382-385 (2015)
Bimodal WC-Co hardmetals were produced using novel technology - reactive sintering. Milled and activated tungsten and graphite powders were mixed with commercial coarse grained WC-Co powder and then sintered. The microstructure of produced materials
Externí odkaz:
https://doaj.org/article/0f9424630a0f4f8491e8978bf7332727
Publikováno v:
Medžiagotyra, Vol 18, Iss 1, Pp 79-83 (2012)
Investigated WC-Co cermets were produced via reactive sintering. In case of reactive sintering the elemental powders of tungsten, carbon black as graphite source and cobalt at first activated throw high energy milling and then the carbide synthesis i
Externí odkaz:
https://doaj.org/article/a029687a2e1b4c0cb0ad362d2bed9b98
Publikováno v:
Solid State Phenomena. 320:176-180
Reactive sintering of cemented carbides involves mechanical and thermal activation of precursor elemental powders, followed by in-situ synthesis of tungsten carbide. This approach promotes formation of ultrafine microstructure favored in many cemente
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::286df7f8ad6712b1341a9c8d91641e05
https://doi.org/10.4028/www.scientific.net/ssp.320.176
https://doi.org/10.4028/www.scientific.net/ssp.320.176
Publikováno v:
Solid State Phenomena. 320:144-149
Friction stir welding (FSW) is employed primarily for metals characterized by poor weldability at fusion welding: aluminium, magnesium, titanium and copper alloys as well as stainless steels. The focus of the study was on the feasibility of applicati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93b977a8faa46aa9f533f14d5bf47db3
https://doi.org/10.4028/www.scientific.net/ssp.320.144
https://doi.org/10.4028/www.scientific.net/ssp.320.144
Autor:
Didem Ovalı, Lauri Kollo, Mertcan Kaba, Konda Gokuldoss Prashanth, M. Lütfi Öveçoğlu, Marek Tarraste, Duygu Ağaoğulları
Publikováno v:
Ceramics International. 47:13827-13836
This work investigated the spark plasma sintering behavior of mechanochemically synthesized molybdenum silicide (MS) powders. Nanosized MS powders were obtained via a mechanochemical synthesis process applied to the initial MoO3–SiO2–Mg powder ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bb794700c409f7dd8966d8e66365f17
https://doi.org/10.1016/j.ceramint.2021.01.248
https://doi.org/10.1016/j.ceramint.2021.01.248