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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: Influence of binder composition, debinding and sintering conditions on structure and some selected properties of the M2 type injected high speed-steel with 10% of carbides are demonstrated in the paper. Design/methodology/approach: Torque-load test, rheological tests, microstructure examina[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The purpose of this research paper is focused on the 55NiCrMoV7, 32CrMoV12-28, X40CrMoV5-1, X38CrMoV5-3 hot work tool steels surface layers improvement properties using HPDL laser. The paper present laser surface technologies, investigation of structure and properties of the hot work tool s[...]
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Archives of Metallurgy and Materials
EN Investigations include alloying the PMHSS6-5-3 steel surface layer with carbide and ceramic powders WC, VC, TiC, SiC, Si3N4 and Al2O3, using the high power diode laser (HPDL). Laser treatment is especially promising for solving contemporary surface enginee[...]
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Archives of Materials Science and Engineering
EN Purpose: The purpose of the present study was to determine the optimal values of selected deposition parameters of diamond-like-carbon coatings (DLC) with the modified cathodic vacuum arc (MCVA) method which ensure obtaining of their most advantageous properties from the perspective of their applica[...]
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Archives of Materials Science and Engineering
EN Purpose: The role of the chemical composition of cast irons for mill rolls in tendencies of diffusionless transformations in the matrix was determined. The investigations of the chemical composition, microstructure and hardness influence on tribological properties of mottled cast iron is presented i[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: Obtaining diamond compacts with a ceramic bonding phase for improving properties of this group of materials. One of the possibilities to improve the properties of PCD materials is the lowering of cobalt bonding phase content which is used in commercial materials. Design/methodology/approach[...]
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Journal of Achievements in Materials and Manufacturing Engineering
2012 Vol. 55, nr 2 556--560
EN Purpose: Development of a new generation tool materials on the basis of high speed-steel manufactured by Powder Injection Moulding. To investigate formability of the polymer-powder slurry in which the HS12-1-5-5 (T15) high-speed steel powder was used, as well as the HD-PE polyethylene and paraffin, [...]
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Journal of Achievements in Materials and Manufacturing Engineering
2011 Vol. 47, nr 2 137--148
EN Purpose: The influence of the chemical composition on a microstructure and tribological properties (wear and friction coefficient) of cast steels used for the mill rolls is presented in the paper. The role of the chemical composition in a tendency of the graphite formation was determined. Design/met[...]
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Journal of Achievements in Materials and Manufacturing Engineering
2011 Vol. 44, nr 2 198--204
EN Purpose: The aim of our work was to obtain durable fined-grained cBN-Si3N4 composite with high values of hardness and fracture toughness, which can be successfully used as a cutting tool. Little quantity of the Si3N4 nanopowder fills up the porous between [...]
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Journal of Achievements in Materials and Manufacturing Engineering
2011 Vol. 49, nr 2 142--149
EN Purpose: The Ni-Ta-Al alloys with high carbon content, strengthened by intermetallic phases, designed for application in high temperatures is presented in the hereby paper. The proposed chemical composition and the results of microstructure investigations as well as hardness in as-cast and after hea[...]
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Journal of Achievements in Materials and Manufacturing Engineering
2011 Vol. 49, nr 2 158--165
EN Purpose: The paper includes investigation results of structures and mechanical properties of coatings deposited by the physical vapor deposition (PVD) techniques onto both sialon tool ceramics and sintered carbides. The paper includes two kinds of coating materials, isomorphic containg phases with T[...]
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Journal of Achievements in Materials and Manufacturing Engineering
2011 Vol. 44, nr 2 115--139
EN Purpose Investigate the structure and properties of sintered tool materials, including cemented carbides, cermets and oxide ceramics deposited with single-layer and gradient coatings (Ti,Al)N and Ti(C,N), and to determine the dependence between the substrate type, coating material or linear variatio[...]
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Materiały Ceramiczne
2011 T. 63, nr 1 131-137
PL Komercyjnie dostępne polikrystaliczne kompakty diamentowe (polycrystalline diamond compacts, PCD), składające sie z polikrystalicznej warstwy diamentowo-kobaltowej na podłożu WC-Co wykorzystywane są do wiercenia i obróbki maszynowej. Obecność fazy kobaltowej w warstwie diamentowej ma wpływ na znaczn[...]
EN Commercially available polycrystalline diamond compacts (PCD), consisting of a polycrystalline diamond-cobalt layer on a WC-Co substrate are used in drilling and machining applications. The presence of a cobalt phase in the diamond layer has the effect of significantly reducing thermal resistance. T[...]
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Archives of Materials Science and Engineering
EN Purpose: Investigation the influence of kind of PVD coatings structure (homogenous or gradient) on properties of deposited tool materials: cemented carbides and cermets. Design/methodology/approach: Analysis of the structure, analysis of the mechanical and functional properties: surface roughness, m[...]
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Archives of Materials Science and Engineering
EN The paper presents investigation results of properties of the sintered tool materials: cemented carbides, cermets and Al2O3 type oxide tool ceramics with gradient (Ti,Al)N and Ti(C,N) coatings deposited with the cathodic arc evaporation CAE-PVD method.
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Archives of Materials Science and Engineering
EN Purpose: The main purpose of the hereby paper was the determination of the temperature and time of solution heat treatment influence on a microstructure and hardness of the newly designed model alloy, being the model Ni-based tool material - intended for operations at high temperatures - strengthene[...]
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Archives of Materials Science and Engineering
EN Purpose: The concept of new tool materials, based on Ni alloys strengthened by intermetallic compounds, intended for operations in high temperatures is presented in the hereby paper. The proposed chemical composition and the results of microstructure investigations as well as hardness testing in as-[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The main aim of researches was investigation of structure and properties of the (Ti, Al, Si)N gradient wear resistant coatings. Design/methodology/approach: The structural investigations include the metallographic analysis on the transmission and scanning electron microscope. Examinations o[...]
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Archives of Materials Science and Engineering
EN Purpose: This paper is an attempt of reviewing the outlooks about the favourable influence of retained austenite on fracture toughness of tool steels according to results of investigation concerning relations between tempering temperature, hardness, fraction of retained austenite and fracture toughn[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The purpose of this research paper was to analyze the surface roughness produced by turning process on hard martensitic stainless steel by Cubic Boron Nitride cutting tool. The work piece material was hard AISI 440C martensitic stainless steel. Design/methodology/approach: The experiments w[...]
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