In Situ Stress Measurements by Neutron Diffraction in .alfa.-.gamma. Fe-Cr-Ni Alloys during Deformation.

Kód výsledku v IS VaVaI

RIV/61389005:_____/00:49020114 - isvavai.cz

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

In Situ Stress Measurements by Neutron Diffraction in .alfa.-.gamma. Fe-Cr-Ni Alloys during Deformation.

Popis výsledku v původním jazyce

In situ neutron diffraction experiments during tension-compression deformation were performed for five Fe-Cr-Ni alloys with the volume fraction of ferrite varied from 0.0 to 100 . Specimens were strained by tensile deformation with a step by step mannerup to a few percent plastic strain followed by unloading and then subsequently deformed in compression in the same manner. The lattice plane spacing of ferrite (.alfa.) and austenite (.tau.) single-phase alloy before loading were used as reference stress-free spacings to determine lattice strains in the .alfa.-.tau. dual phase alloys. It has been found that the large residuallattice strains generated by tensile deformation cause a large Bauschinger effectin the .alfa.-.tau. dual phase alloy. Due to highresolution of the used neutron diffractometer, microstrains in both phases could be extracted from diffraction profiles. The obtained microstrains do not vary during elastic deformation while a significant increase with an increase of pl

Název v anglickém jazyce

In Situ Stress Measurements by Neutron Diffraction in .alfa.-.gamma. Fe-Cr-Ni Alloys during Deformation.

Popis výsledku anglicky

In situ neutron diffraction experiments during tension-compression deformation were performed for five Fe-Cr-Ni alloys with the volume fraction of ferrite varied from 0.0 to 100 . Specimens were strained by tensile deformation with a step by step mannerup to a few percent plastic strain followed by unloading and then subsequently deformed in compression in the same manner. The lattice plane spacing of ferrite (.alfa.) and austenite (.tau.) single-phase alloy before loading were used as reference stress-free spacings to determine lattice strains in the .alfa.-.tau. dual phase alloys. It has been found that the large residuallattice strains generated by tensile deformation cause a large Bauschinger effectin the .alfa.-.tau. dual phase alloy. Due to highresolution of the used neutron diffractometer, microstrains in both phases could be extracted from diffraction profiles. The obtained microstrains do not vary during elastic deformation while a significant increase with an increase of pl

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

GV202/97/K038: Středisko základního a aplikovaného výzkumu s termálními neutrony

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2000

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials Science Forum

ISSN

0255-5476

e-ISSN

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Svazek periodika

347

Číslo periodika v rámci svazku

N/A

Stát vydavatele periodika

RU - Ruská federace

Počet stran výsledku

6

Strana od-do

328-333

Kód UT WoS článku

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EID výsledku v databázi Scopus

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