martensitic structure

martensitic structure

[¦mär‚ten¦zid·ik ′strək·chər]
(metallurgy)
Of, pertaining to, or having the structure of martensite, that is, an interstitial, supersaturated solid solution of carbon in iron having a body-centered tetragonal lattice; the microstructure is characterized by an acicular or needlelike pattern.
References in periodicals archive ?
Considerable changes occurred after the hardening step: uniformlydistributed fine precipitates of intermediate phases have formed in the martensitic structure (Fig.
The contributions of hardening mechanisms in the martensitic structure include the solid solution substitution element hardening, the precipitation hardening, the primary austenitic grain size hardening and the martensite morphology hardening.
The registered condition of the initial microstructure suggested that this case was the final condition of the chip as the martensitic structure mentioned above showed no subsequent plastic deformation.
As emphasized in the theoretical section, the connection between a single variant of martensite and the parent austenitic phase is provided by a twinned martensitic structure, which is able to satisfy the compatibility conditions both with the austenite (over the habit plane) and with the single variant.
Extendo-Die hot work die steel, with a fully martensitic structure, has superior wear resistance and toughness when compared with H-13 tool steel, especially in large sections heavier than 3[inches] to 4[inches].
Ni-Mo steel can be cured by a simple heat treatment which leads to a new material structure: the martensitic structure.
Tempering of the martensitic structure at approximately 620 deg C leads to the reformation of the finely dispersed austenitic structure.
When these materials are heated the martensitic structure is changed into austenitic structure.
Microstructural examination of the failed sleeve revealed a coarse tempered martensitic structure.
Alternatively, the martensitic structure may be produced and immediately tempered by the residual heat.
500 41 to 47 RC) hardness with martensitic structure.
The wear is smaller when the steel has a martensitic structure.