Study on Temper Embrittlement and Hydrogen Embrittlement of a Hydrogenation Reactor by Small Punch Test

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10238290" target="_blank" >RIV/61989100:27360/17:10238290 - isvavai.cz</a>

Result on the web

<a href="https://www.ncbi.nlm.nih.gov/pubmed/28773029" target="_blank" >https://www.ncbi.nlm.nih.gov/pubmed/28773029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma10060671" target="_blank" >10.3390/ma10060671</a>

Result language

angličtina

Original language name

Study on Temper Embrittlement and Hydrogen Embrittlement of a Hydrogenation Reactor by Small Punch Test

Original language description

The study on temper embrittlement and hydrogen embrittlement of a test block from a 3Cr1Mo1/4V hydrogenation reactor after ten years of service was carried out by small punch test (SPT) at different temperatures. The SPT fracture energy E-sp (derived from integrating the load-displacement curve) divided by the maximum load (F-m) of SPT was used to fit the E-sp/F-m versus-temperature curve to determine the energy transition temperature (T-sp) which corresponded to the ductile-brittle transition temperature of the Charpy impact test. The results indicated that the ratio of E-sp/F-m could better represent the energy of transition in SPT compared with E-sp. The ductile-to-brittle transition temperature of the four different types of materials was measured using the hydrogen charging test by SPT. These four types of materials included the base metal and the weld metal in the as-received state, and the base metal and the weld metal in the de-embrittled state. The results showed that there was a degree of temper embrittlement in the base metal and the weld metal after ten years of service at 390 degrees C. The specimens became slightly more brittle but this was not obvious after hydrogen charging. Because the toughness of the material of the hydrogenation reactor was very good, the flat samples of SPT could not characterize the energy transition temperature within the liquid nitrogen temperature. Additionally, there was no synergetic effect of temper embrittlement and hydrogen embrittlement found in 3Cr1Mo1/4V steel.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/LO1203" target="_blank" >LO1203: Regional Materials Science and Technology Centre - Feasibility Program</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

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Volume of the periodical

10

Issue of the periodical within the volume

6

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

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UT code for WoS article

000404415000105

EID of the result in the Scopus database

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