In situ characterization of a high work hardening Ti-6Al-4V prepared by electron beam melting

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F19%3A00511691" target="_blank" >RIV/68081723:_____/19:00511691 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.actamat.2019.08.037" target="_blank" >https://doi.org/10.1016/j.actamat.2019.08.037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.actamat.2019.08.037" target="_blank" >10.1016/j.actamat.2019.08.037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

In situ characterization of a high work hardening Ti-6Al-4V prepared by electron beam melting

Popis výsledku v původním jazyce

A multi-phase Ti-6Al-4V prepared by electron beam melting and thermal post treatments has been shown to exhibit increased strength and ductility over standard wrought or hot isostatic pressed Ti-6-Al-4V. The mechanical improvements are due to a prolonged, continuous work hardening effect not commonly observed in Ti alloys. In situ x-ray diffraction and high resolution digital image correlation are used to examine the strain partitioning between the phases during tensile loading with post-mortem electron microscopy to characterize the deformation behavior in each phase. Specimens heat treated between 850 and 980 degrees C were tested and the effect of annealing temperature on the micromechanical response is discussed. It is shown that the work hardening is the result of composite load-sharing behavior between three mechanically distinct microstructures: large a lamellae and a martensitic region of fine acicular alpha' and a third phase not previously reported in this alloy. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd.

Název v anglickém jazyce

In situ characterization of a high work hardening Ti-6Al-4V prepared by electron beam melting

Popis výsledku anglicky

A multi-phase Ti-6Al-4V prepared by electron beam melting and thermal post treatments has been shown to exhibit increased strength and ductility over standard wrought or hot isostatic pressed Ti-6-Al-4V. The mechanical improvements are due to a prolonged, continuous work hardening effect not commonly observed in Ti alloys. In situ x-ray diffraction and high resolution digital image correlation are used to examine the strain partitioning between the phases during tensile loading with post-mortem electron microscopy to characterize the deformation behavior in each phase. Specimens heat treated between 850 and 980 degrees C were tested and the effect of annealing temperature on the micromechanical response is discussed. It is shown that the work hardening is the result of composite load-sharing behavior between three mechanically distinct microstructures: large a lamellae and a martensitic region of fine acicular alpha' and a third phase not previously reported in this alloy. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20306 - Audio engineering, reliability analysis

Projekt

<a href="/cs/project/EF16_013%2F0001823" target="_blank" >EF16_013/0001823: Modernizace Infrastruktury pro studium a aplikaci pokročilých materiálů (m-IPMinfra)</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Acta Materialia

ISSN

1359-6454

e-ISSN

—

Svazek periodika

179

Číslo periodika v rámci svazku

OCT

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

224-236

Kód UT WoS článku

000488417400020

EID výsledku v databázi Scopus

2-s2.0-85071503530