Hydrogen effects on different properties of biocompatible metallic materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10237751" target="_blank" >RIV/61989100:27360/17:10237751 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Hydrogen effects on different properties of biocompatible metallic materials

Popis výsledku v původním jazyce

The comparative study of hydrogen effect was performed for different metallic materials in non-hydrogenated and hydrogenated stages: AISI 316L stainless steel, Ti6Al4V and Ti26Nb alloys. First, the effect of heat treatment under hydrogen gas on microstructure and room temperature tensile properties was investigated for 316L austenitic stainless steel and Ti6Al4V alloy. The hydrogenated 316L steel with the hydrogen content of 17.5 wt. ppm showed the higher yield strength and ultimate tensile stress, unlike Ti6Al4V, which the mechanical properties lowered due to the hydrogen amount as high as 2235 wt. ppm. Second, the positive effect of hydrogen on microstructure and hot deformation behavior at 700 and 750 °C as investigated after thermal hydrogen treatment for Ti6Al4V and Ti26Nb alloys. Comparing the results obtained for the non-hydrogenated and hydrogenated specimens of both alloys, it was found that the hydrogen content as high as 1325 wt. ppm has an obvious benefit effect on high temperature deformation behavior in the Ti6Al4V alloy by stabilizing beta phase and lowering the thermal deformation resistance. In the case of Ti26Nb alloy the hydrogen content of 2572 wt. ppm suppressed stress instabilities during hot compression but slightly increased the thermal deformation resistance. The microstructure study was performed before and after the tensile tests as well as before and after isothermal compression tests on the specimens in hydrogenated and non-hydrogenated conditions. The amount of hydrogen in the specimens was measured by means of an analyzer LECO RH600.

Název v anglickém jazyce

Hydrogen effects on different properties of biocompatible metallic materials

Popis výsledku anglicky

The comparative study of hydrogen effect was performed for different metallic materials in non-hydrogenated and hydrogenated stages: AISI 316L stainless steel, Ti6Al4V and Ti26Nb alloys. First, the effect of heat treatment under hydrogen gas on microstructure and room temperature tensile properties was investigated for 316L austenitic stainless steel and Ti6Al4V alloy. The hydrogenated 316L steel with the hydrogen content of 17.5 wt. ppm showed the higher yield strength and ultimate tensile stress, unlike Ti6Al4V, which the mechanical properties lowered due to the hydrogen amount as high as 2235 wt. ppm. Second, the positive effect of hydrogen on microstructure and hot deformation behavior at 700 and 750 °C as investigated after thermal hydrogen treatment for Ti6Al4V and Ti26Nb alloys. Comparing the results obtained for the non-hydrogenated and hydrogenated specimens of both alloys, it was found that the hydrogen content as high as 1325 wt. ppm has an obvious benefit effect on high temperature deformation behavior in the Ti6Al4V alloy by stabilizing beta phase and lowering the thermal deformation resistance. In the case of Ti26Nb alloy the hydrogen content of 2572 wt. ppm suppressed stress instabilities during hot compression but slightly increased the thermal deformation resistance. The microstructure study was performed before and after the tensile tests as well as before and after isothermal compression tests on the specimens in hydrogenated and non-hydrogenated conditions. The amount of hydrogen in the specimens was measured by means of an analyzer LECO RH600.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 14th Sino-Russia Symposium on Advanced Materials and Technologies (abstracts)

ISBN

978-7-5024-7654-0

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

10

Strana od-do

676-685

Název nakladatele

Metallurgical Industry Press

Místo vydání

Peking

Místo konání akce

Sanya

Datum konání akce

28. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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