Thermal Softening Measurements of Refractory High-Entropy Alloys
Home-built equipment will be presented able to measure the thermal expansion (with a flat indenter) and indentation depth (with a pointed indenter) up to 1100 °C. In dilatometer mode, the allotropic phase transformations can be studied. For hardness, a Rockwell-type measurement is adopted. First, we...
Gespeichert in:
| Veröffentlicht in: | Materials 2024-11, Vol.17 (23), p.5718 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | 23 |
| container_start_page | 5718 |
| container_title | Materials |
| container_volume | 17 |
| creator | Temesi, Ottó K Karacs, Albert Chinh, Nguyen Q Varga, Lajos K |
| description | Home-built equipment will be presented able to measure the thermal expansion (with a flat indenter) and indentation depth (with a pointed indenter) up to 1100 °C. In dilatometer mode, the allotropic phase transformations can be studied. For hardness, a Rockwell-type measurement is adopted. First, we apply a small load and measure the displacement consisting of a dominant positive thermal expansion and a small negative indentation depth contribution. Then, we repeat the thermal cycle with such a high load that the compensation appears at around 250-300 °C. With increasing temperature, the indentation depth starts to dominate and we can notice a contraction. The indentation depth as a function of temperature, ID(T), will be obtained by subtracting the high load curve from the low load curve. A new rational fraction expression will be tested to describe the thermal softening of pure metals and refractory HEAs. Still, we are working on improving the equipment to extend the working temperature up to 1200 °C. |
| doi_str_mv | 10.3390/ma17235718 |
| format | Article |
| fullrecord | <record><control><sourceid>gale_proqu</sourceid><recordid>TN_cdi_proquest_miscellaneous_3146916543</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A819953304</galeid><sourcerecordid>A819953304</sourcerecordid><originalsourceid>FETCH-LOGICAL-c279t-f9c5cb234a36d0e46d83b13abd8aee84e164725aab2d0933dea053ad540d9db33</originalsourceid><addsrcrecordid>eNpdkd1LwzAQwIMobsy9-AdIwRcRqkkvaZs3x5hOmAg6n0vaXLeOtplJ-7D_3ozND7zjuOP43XEfhFwyegcg6X2jWBKBSFh6QoZMyjhkkvPTP_GAjJ3bUC8ALI3kORmAjFPBBB-Sh-UabaPq4N2UHbZVuwpeULneYoNt5wJTBm9YWlV0xu6CebVah7O2s2a7CyZ1bXbugpyVqnY4PvoR-XicLafzcPH69DydLMIiSmQXlrIQRR4BVxBrijzWKeQMVK5ThZhyZDFPIqFUHmkqATQqKkBpwamWOgcYkZtD3601nz26LmsqV2BdqxZN7zJgPJYsFnyPXv9DN6a3rZ9uT3GWQOxtRO4O1ErVmFVtaTq_pleNTVWYFsvK5yepv6MAoNwX3B4KCmucs1hmW1s1yu4yRrP9L7LfX3j46jhDnzeof9Dvy8MXePSCaw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>3144173617</pqid></control><display><type>article</type><title>Thermal Softening Measurements of Refractory High-Entropy Alloys</title><source>MDPI - Multidisciplinary Digital Publishing Institute</source><source>EZB-FREE-00999 freely available EZB journals</source><source>PubMed Central</source><source>Free Full-Text Journals in Chemistry</source><source>PubMed Central Open Access</source><creator>Temesi, Ottó K ; Karacs, Albert ; Chinh, Nguyen Q ; Varga, Lajos K</creator><creatorcontrib>Temesi, Ottó K ; Karacs, Albert ; Chinh, Nguyen Q ; Varga, Lajos K</creatorcontrib><description>Home-built equipment will be presented able to measure the thermal expansion (with a flat indenter) and indentation depth (with a pointed indenter) up to 1100 °C. In dilatometer mode, the allotropic phase transformations can be studied. For hardness, a Rockwell-type measurement is adopted. First, we apply a small load and measure the displacement consisting of a dominant positive thermal expansion and a small negative indentation depth contribution. Then, we repeat the thermal cycle with such a high load that the compensation appears at around 250-300 °C. With increasing temperature, the indentation depth starts to dominate and we can notice a contraction. The indentation depth as a function of temperature, ID(T), will be obtained by subtracting the high load curve from the low load curve. A new rational fraction expression will be tested to describe the thermal softening of pure metals and refractory HEAs. Still, we are working on improving the equipment to extend the working temperature up to 1200 °C.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma17235718</identifier><identifier>PMID: 39685154</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Allotropic transformation ; Alloys ; Extensometers ; High entropy alloys ; High temperature ; Indentation ; Measurement ; Mechanical properties ; Metal industry ; Phase transitions ; Precipitation hardening ; Softening ; Thermal expansion ; Yield stress</subject><ispartof>Materials, 2024-11, Vol.17 (23), p.5718</ispartof><rights>COPYRIGHT 2024 MDPI AG</rights><rights>2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c279t-f9c5cb234a36d0e46d83b13abd8aee84e164725aab2d0933dea053ad540d9db33</cites><orcidid>0000-0001-8068-0197 ; 0000-0002-6610-7308</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39685154$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Temesi, Ottó K</creatorcontrib><creatorcontrib>Karacs, Albert</creatorcontrib><creatorcontrib>Chinh, Nguyen Q</creatorcontrib><creatorcontrib>Varga, Lajos K</creatorcontrib><title>Thermal Softening Measurements of Refractory High-Entropy Alloys</title><title>Materials</title><addtitle>Materials (Basel)</addtitle><description>Home-built equipment will be presented able to measure the thermal expansion (with a flat indenter) and indentation depth (with a pointed indenter) up to 1100 °C. In dilatometer mode, the allotropic phase transformations can be studied. For hardness, a Rockwell-type measurement is adopted. First, we apply a small load and measure the displacement consisting of a dominant positive thermal expansion and a small negative indentation depth contribution. Then, we repeat the thermal cycle with such a high load that the compensation appears at around 250-300 °C. With increasing temperature, the indentation depth starts to dominate and we can notice a contraction. The indentation depth as a function of temperature, ID(T), will be obtained by subtracting the high load curve from the low load curve. A new rational fraction expression will be tested to describe the thermal softening of pure metals and refractory HEAs. Still, we are working on improving the equipment to extend the working temperature up to 1200 °C.</description><subject>Allotropic transformation</subject><subject>Alloys</subject><subject>Extensometers</subject><subject>High entropy alloys</subject><subject>High temperature</subject><subject>Indentation</subject><subject>Measurement</subject><subject>Mechanical properties</subject><subject>Metal industry</subject><subject>Phase transitions</subject><subject>Precipitation hardening</subject><subject>Softening</subject><subject>Thermal expansion</subject><subject>Yield stress</subject><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdkd1LwzAQwIMobsy9-AdIwRcRqkkvaZs3x5hOmAg6n0vaXLeOtplJ-7D_3ozND7zjuOP43XEfhFwyegcg6X2jWBKBSFh6QoZMyjhkkvPTP_GAjJ3bUC8ALI3kORmAjFPBBB-Sh-UabaPq4N2UHbZVuwpeULneYoNt5wJTBm9YWlV0xu6CebVah7O2s2a7CyZ1bXbugpyVqnY4PvoR-XicLafzcPH69DydLMIiSmQXlrIQRR4BVxBrijzWKeQMVK5ThZhyZDFPIqFUHmkqATQqKkBpwamWOgcYkZtD3601nz26LmsqV2BdqxZN7zJgPJYsFnyPXv9DN6a3rZ9uT3GWQOxtRO4O1ErVmFVtaTq_pleNTVWYFsvK5yepv6MAoNwX3B4KCmucs1hmW1s1yu4yRrP9L7LfX3j46jhDnzeof9Dvy8MXePSCaw</recordid><startdate>20241122</startdate><enddate>20241122</enddate><creator>Temesi, Ottó K</creator><creator>Karacs, Albert</creator><creator>Chinh, Nguyen Q</creator><creator>Varga, Lajos K</creator><general>MDPI AG</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-8068-0197</orcidid><orcidid>https://orcid.org/0000-0002-6610-7308</orcidid></search><sort><creationdate>20241122</creationdate><title>Thermal Softening Measurements of Refractory High-Entropy Alloys</title><author>Temesi, Ottó K ; Karacs, Albert ; Chinh, Nguyen Q ; Varga, Lajos K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c279t-f9c5cb234a36d0e46d83b13abd8aee84e164725aab2d0933dea053ad540d9db33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Allotropic transformation</topic><topic>Alloys</topic><topic>Extensometers</topic><topic>High entropy alloys</topic><topic>High temperature</topic><topic>Indentation</topic><topic>Measurement</topic><topic>Mechanical properties</topic><topic>Metal industry</topic><topic>Phase transitions</topic><topic>Precipitation hardening</topic><topic>Softening</topic><topic>Thermal expansion</topic><topic>Yield stress</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Temesi, Ottó K</creatorcontrib><creatorcontrib>Karacs, Albert</creatorcontrib><creatorcontrib>Chinh, Nguyen Q</creatorcontrib><creatorcontrib>Varga, Lajos K</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><jtitle>Materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Temesi, Ottó K</au><au>Karacs, Albert</au><au>Chinh, Nguyen Q</au><au>Varga, Lajos K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal Softening Measurements of Refractory High-Entropy Alloys</atitle><jtitle>Materials</jtitle><addtitle>Materials (Basel)</addtitle><date>2024-11-22</date><risdate>2024</risdate><volume>17</volume><issue>23</issue><spage>5718</spage><pages>5718-</pages><issn>1996-1944</issn><eissn>1996-1944</eissn><abstract>Home-built equipment will be presented able to measure the thermal expansion (with a flat indenter) and indentation depth (with a pointed indenter) up to 1100 °C. In dilatometer mode, the allotropic phase transformations can be studied. For hardness, a Rockwell-type measurement is adopted. First, we apply a small load and measure the displacement consisting of a dominant positive thermal expansion and a small negative indentation depth contribution. Then, we repeat the thermal cycle with such a high load that the compensation appears at around 250-300 °C. With increasing temperature, the indentation depth starts to dominate and we can notice a contraction. The indentation depth as a function of temperature, ID(T), will be obtained by subtracting the high load curve from the low load curve. A new rational fraction expression will be tested to describe the thermal softening of pure metals and refractory HEAs. Still, we are working on improving the equipment to extend the working temperature up to 1200 °C.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>39685154</pmid><doi>10.3390/ma17235718</doi><orcidid>https://orcid.org/0000-0001-8068-0197</orcidid><orcidid>https://orcid.org/0000-0002-6610-7308</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1996-1944 |
| ispartof | Materials, 2024-11, Vol.17 (23), p.5718 |
| issn | 1996-1944 1996-1944 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_3146916543 |
| source | MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry; PubMed Central Open Access |
| subjects | Allotropic transformation Alloys Extensometers High entropy alloys High temperature Indentation Measurement Mechanical properties Metal industry Phase transitions Precipitation hardening Softening Thermal expansion Yield stress |
| title | Thermal Softening Measurements of Refractory High-Entropy Alloys |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-08T18%3A54%3A32IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Thermal%20Softening%20Measurements%20of%20Refractory%20High-Entropy%20Alloys&rft.jtitle=Materials&rft.au=Temesi,%20Ott%C3%B3%20K&rft.date=2024-11-22&rft.volume=17&rft.issue=23&rft.spage=5718&rft.pages=5718-&rft.issn=1996-1944&rft.eissn=1996-1944&rft_id=info:doi/10.3390/ma17235718&rft_dat=%3Cgale_proqu%3EA819953304%3C/gale_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=3144173617&rft_id=info:pmid/39685154&rft_galeid=A819953304&rfr_iscdi=true |