hypereutectoid

Related to hypereutectoid: eutectoid steel, Eutectic mixture

hy•per•eu•tec•toid

(ˌhaɪ pər yʊˈtɛk tɔɪd)

adj.
having more of the alloying element than the eutectoid composition.
[1910–15]
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References in periodicals archive ?
7: 15, 16) were high-quality welded from multi-layered steel blanks; double-edged swords (I-V centuries) were forged from multi-layered iron blank, from iron ball by carburizing, from three-layered steel blank by high-quality welding, from homogeneous carburized steel of high-quality, from hypereutectoid crucible steel, and from Damascus steel.
Surface carburizing of products gives rather multiplex structure: at the very surface the hypereutectoid structure composes from pearlite and different amount of surplus carbides dependent on the degree of carbon saturation; next we have eutectoid structure of pearlite and lastly -hypoeutectoid ferrite/pearlite structure with rising amount of ferrite till the structure reaches the phase composition of the core.
The microstructure analysis had showed carbides undistinguished in the hypereutectoid zone because of high dispersion, also the boundary was not visible between hyper- and eutectoid zones.
Anyways, hypereutectoid structure with pearlite and disperse carbides was assured at the first zone of carburized layer of steel 12XH3A specimens after carburization at 930[degrees]C temperature.
The effect of microstructural characteristics of pearlite on the mechanical properties of hypereutectoid steel.
Empirical modelling of the isothermal transformation of pearlite in hypereutectoid steel.
Surface carburizing of specimens gives rather multiplex microstructure: at the very surface the hypoeutectoid microstructure composes from pearlite and different amount of surplus carbides dependent on the degree of carbon saturation; next we have eutectoid microstructure of pearlite and lastly - hypereutectoid ferrite/pearlite microstructure with rising amount of ferrite till the microstructure reaches the phase composition of the core.
where 1 is width of hipoeutectoid zone, urn; 2 is width of eutectoid zone, um; 3 is hypereutectoid range going gradually to the microstructure of core, um.