Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Märt Kolnes"'
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:
Materials, Vol 13, Iss 8, p 1994 (2020)
The aim of the research was to disclose the performance of ceramic-metal composites, in particular TiC-based cermets and WC-Co hardmetals, as tool materials for friction stir welding (FSW) of aluminium alloys, stainless steels and copper. The model t
Externí odkaz:
https://doaj.org/article/7fa99fa651c744ee9f743c6f92e8415e
Publikováno v:
Medžiagotyra, Vol 21, Iss 3, Pp 353-357 (2015)
TiC-NiMo cermets combine relatively low density with high hardness. Because nickel is known as a toxin and allergen and allergy to nickel is a phenomenon which has assumed growing importance in recent years there has been a flurry of activity to find
Externí odkaz:
https://doaj.org/article/cba82d89d01f4e6bb8b4d61144b81d38
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
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
Publikováno v:
Defect and Diffusion Forum. 405:402-407
The economic, environmental and healthcare aspects are pushing cemented carbide industry to reduce or even avoid the usage of conventional binder metals – nickel and cobalt. Commonly, austenitic Fe-Ni alloys have been preferred choice for substitut
Publikováno v:
Key Engineering Materials. 799:136-141
During production of cemented carbides hard and brittle tungsten carbide (WC) and ductile metal powders (mainly from Fe-group) are milled together. Complete milling results in a Gaussian distribution and narrow particle size range of the milled powde
Publikováno v:
Materials, Vol 13, Iss 1994, p 1994 (2020)
Materials
Volume 13
Issue 8
Materials
Volume 13
Issue 8
The aim of the research was to disclose the performance of ceramic-metal composites, in particular TiC-based cermets and WC-Co hardmetals, as tool materials for friction stir welding (FSW) of aluminium alloys, stainless steels and copper. The model t
Autor:
Märt Kolnes, Jakob Kübarsepp, Marek Tarraste, Kristjan Juhani, Mart Viljus, Arvo Mere, Birgit Maaten
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 73:183-191
Fe-based alloys as alternative binders of cemented carbides are of increased research interest. We used ferritic chromium steel AISI430L as metallic component in cobalt and nickel free WC-FeCr cemented carbides. Composites with relatively high binder
Publikováno v:
Powder Metallurgy. 61:197-209
From the outlook of healthcare, economic importance and supply risk, utilisation of raw materials like tungsten, cobalt and nickel should be reduced or replaced with other metals. Nontoxic titanium...