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 ?
Figure 5c shows the martensitic structure in UCHAZ, which its presence is due to the high cooling rate experienced in RSW.
Furthermore, a comparison of the predicted results with the experimental ones [3] indicated that such a model could be available for representing the characteristics of the low temperature martensitic structure (B19').
The quenched base metal specimens presented martensitic structure, but due to the low carbon they have noted some ferrite sites, as proved in Figure 10(b).
Considerable changes occurred after the hardening step: uniformly-distributed fine precipitates of intermediate phases have formed in the martensitic structure (Fig.
Nitinol normally exists in an austenitic crystalline phase that transforms to a martensitic structure on stressing at a constant temperature.
The only finding is that the X-ray diffraction method did not show presence of any martensitic structure in the chip samples.
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].
Considerable changes occurred after the hardening step: uniformlydistributed fine precipitates of intermediate phases have formed in the martensitic structure (Fig.
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. Prior austenitic grain size was approximately ASTM 1.