Evaluation of Solid-Solution Hardening of Fe-27 at. pct Al by Vanadium and Comparison to Precipitation Strengthening by Vanadium Carbides

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10320271" target="_blank" >RIV/00216208:11320/15:10320271 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24210/15:00002492

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11661-015-3106-y" target="_blank" >http://dx.doi.org/10.1007/s11661-015-3106-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11661-015-3106-y" target="_blank" >10.1007/s11661-015-3106-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of Solid-Solution Hardening of Fe-27 at. pct Al by Vanadium and Comparison to Precipitation Strengthening by Vanadium Carbides

Popis výsledku v původním jazyce

The compressive yield stress of Fe-27Al-xV(-C) (x = 0 to 4 at. pct) at 1073 K (800 A degrees C) has been determined. The increase of the yield stress of Fe-Al by increasing vanadium content is explained by solid-solution hardening. The experimentally observed values of the yield stress at 1073 K (800 A degrees C) are compared with the strengthening given by theories evaluating the interaction between solute atoms and dislocations. The experimental results fit well the increase of the yield stress by the interaction of the solute atoms with screw dislocations. Further increase in yield strength in similar alloys due to vanadium carbides is documented. Precipitated carbides were identified by transmission electron microscopy and Kikuchi patterns. Although precipitation of vanadium carbides increases the compressive yield stress, they also could result in premature failure in tension as their highly anisotropic shape may facilitate crack nucleation. (C) The Minerals, Metals & Materials Society and ASM International 2015

Název v anglickém jazyce

Evaluation of Solid-Solution Hardening of Fe-27 at. pct Al by Vanadium and Comparison to Precipitation Strengthening by Vanadium Carbides

Popis výsledku anglicky

The compressive yield stress of Fe-27Al-xV(-C) (x = 0 to 4 at. pct) at 1073 K (800 A degrees C) has been determined. The increase of the yield stress of Fe-Al by increasing vanadium content is explained by solid-solution hardening. The experimentally observed values of the yield stress at 1073 K (800 A degrees C) are compared with the strengthening given by theories evaluating the interaction between solute atoms and dislocations. The experimental results fit well the increase of the yield stress by the interaction of the solute atoms with screw dislocations. Further increase in yield strength in similar alloys due to vanadium carbides is documented. Precipitated carbides were identified by transmission electron microscopy and Kikuchi patterns. Although precipitation of vanadium carbides increases the compressive yield stress, they also could result in premature failure in tension as their highly anisotropic shape may facilitate crack nucleation. (C) The Minerals, Metals & Materials Society and ASM International 2015

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP108%2F12%2F1452" target="_blank" >GAP108/12/1452: Optimalizace vysokoteplotních mechanických vlastností aluminidů železa typu Fe3Al s karbidotvornými prvky</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

ISSN

1073-5623

e-ISSN

—

Svazek periodika

46A

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

5091-5094

Kód UT WoS článku

000362344100028

EID výsledku v databázi Scopus

2-s2.0-84942987468