{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T00:26:16Z","timestamp":1767831976500,"version":"3.49.0"},"reference-count":25,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2019,3,15]],"date-time":"2019-03-15T00:00:00Z","timestamp":1552608000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004663","name":"Ministry of Science and Technology, Taiwan","doi-asserted-by":"publisher","award":["MOST 107-2218-E002-019 and MOST 107-2221-E002-016-MY2."],"award-info":[{"award-number":["MOST 107-2218-E002-019 and MOST 107-2221-E002-016-MY2."]}],"id":[{"id":"10.13039\/501100004663","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>Infrared vacuum brazing of CoCrFeMnNi high entropy alloy (HEA) using BNi-2 and MBF601 fillers has been investigated. Both brazes show poor wettability at temperatures only 20 \u00b0C above their liquidus temperatures. However, the wettability of BNi-2 and MBF601 fillers on CoCrFeMnNi HEA is greatly improved with increasing the test temperatures, 50 \u00b0C above their liquidus temperatures. The BNi-2 brazed joints are dominated by Ni-rich matrix with huge CrB and a few tiny boride precipitates. Average shear strengths of joints increase with increasing brazing temperature and\/or time, and fracture location changes from blocky CrB in the brazed zone to grain boundary boride in the substrate. The MBF601 brazed joints are composed of CoCrFeMnNi-based matrix, particles of B\/Co\/Cr\/Fe\/Mn\/Ni\/P compounds, and some phosphides form along the grain boundaries of the substrate. The specimen brazed with MBF601 filler foil at 1050 \u00b0C for 600 s has the highest average shear strength of 321 MPa, while that brazed at 1080 \u00b0C for 600 s has a lower average shear strength of 271 MPa due to the presence of solidification shrinkage voids.<\/jats:p>","DOI":"10.3390\/e21030283","type":"journal-article","created":{"date-parts":[[2019,3,18]],"date-time":"2019-03-18T04:06:55Z","timestamp":1552882015000},"page":"283","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Infrared Brazing of CoCrFeMnNi Equiatomic High Entropy Alloy Using Nickel-Based Braze Alloys"],"prefix":"10.3390","volume":"21","author":[{"given":"Chieh","family":"Lin","sequence":"first","affiliation":[{"name":"Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1133-9838","authenticated-orcid":false,"given":"Ren-Kae","family":"Shiue","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shyi-Kaan","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan"},{"name":"Department of Mechanical Engineering, National Taiwan University, Taipei 106, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huai-Li","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, National Taiwan University, Taipei 106, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,3,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1002\/adem.200300567","article-title":"Nanostructured high-entropy alloys with multiple principal elements: Novel alloy design concepts and outcomes","volume":"6","author":"Yeh","year":"2004","journal-title":"Adv. Eng. Mater."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"633","DOI":"10.3166\/acsm.31.633-648","article-title":"Recent progress in high entropy alloys","volume":"31","author":"Yeh","year":"2006","journal-title":"Ann. Chim. Sci. Mater."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1759","DOI":"10.1007\/s11837-013-0761-6","article-title":"Alloy design strategies and future trends in high-entropy alloys","volume":"65","author":"Yeh","year":"2013","journal-title":"JOM"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1016\/j.msea.2003.10.257","article-title":"Microstructural development in equiatomic multicomponent alloys","volume":"375\u2013377","author":"Cantor","year":"2004","journal-title":"Mater. Sci. Eng. A"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"2628","DOI":"10.1016\/j.actamat.2013.01.042","article-title":"Relative effects of enthalpy and entropy on the phase stability of equiatomic high-entropy alloys","volume":"61","author":"Otto","year":"2013","journal-title":"Acta Mater."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"4887","DOI":"10.1016\/j.actamat.2013.04.058","article-title":"Sluggish diffusion in Co\u2013Cr\u2013Fe\u2013Mn\u2013Ni high-entropy alloys","volume":"61","author":"Tsai","year":"2013","journal-title":"Acta Mater."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1153","DOI":"10.1126\/science.1254581","article-title":"A fracture-resistant high-entropy alloy for cryogenic applications","volume":"345","author":"Gludovatz","year":"2014","journal-title":"Science"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"5743","DOI":"10.1016\/j.actamat.2013.06.018","article-title":"The Influences of temperature and microstructure on the tensile properties of a CoCrFeMnNi high-entropy alloy","volume":"61","author":"Otto","year":"2013","journal-title":"Acta Mater."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2262","DOI":"10.1007\/s11837-015-1589-z","article-title":"Processing, microstructure and mechanical properties of the CrMnFeCoNi high-entropy alloy","volume":"67","author":"Gludovatz","year":"2015","journal-title":"JOM"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1283","DOI":"10.1016\/S1359-6454(97)00298-X","article-title":"Infrared joining of TiAl intermetallics using Ti-15Cu-15Ni foil\u2014I. The microstructure morphologies of joint interfaces","volume":"46","author":"Lee","year":"1998","journal-title":"Acta Mater."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1991","DOI":"10.1016\/S1359-6454(02)00606-7","article-title":"Infrared brazing of TiAl intermetallic using BAg-8 braze alloy","volume":"51","author":"Shiue","year":"2003","journal-title":"Acta Mater."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1016\/j.intermet.2009.06.017","article-title":"Strong bonding of infrared brazed \u03b12-Ti3Al and Ti\u20136Al\u20134V using Ti\u2013Cu\u2013Ni fillers","volume":"18","author":"Shiue","year":"2010","journal-title":"Intermetallics"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"735","DOI":"10.1007\/s11661-016-3890-z","article-title":"Infrared brazing of Ti50Ni50 shape memory alloy and Inconel 600 alloy with two Ag-Cu-Ti active braze alloys","volume":"48","author":"Shiue","year":"2017","journal-title":"Metall. Mater. Trans. A"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1016\/j.matlet.2017.12.003","article-title":"Laser brazing of a nickel-based superalloy using a Ni-Mn-Fe-Co-Cu high entropy alloy filler metal","volume":"215","author":"Bridges","year":"2018","journal-title":"Mater. Lett."},{"key":"ref_15","unstructured":"Olsen, D.L., Siewert, I.A., Liu, S., and Edwards, G.R. (1990). ASM Handbook Volume 6: Welding, Brazing and Soldering, ASM International."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"3177","DOI":"10.1007\/s11661-004-0062-3","article-title":"Infrared brazing Cu and Ti using a 95Ag-5Al braze alloy","volume":"35","author":"Shiue","year":"2004","journal-title":"Metall. Mater. Trans. A"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"6353","DOI":"10.1007\/s10853-006-0709-0","article-title":"Brazing of 422 stainless steel using the AWS classification BNi-2 braze alloy","volume":"41","author":"Ou","year":"2006","journal-title":"J. Mater. Sci."},{"key":"ref_18","unstructured":"Humpston, G., and Jacobson, D.M. (1993). Principles of Soldering and Brazing, ASM International."},{"key":"ref_19","first-page":"160s","article-title":"High temperature brazing of stainless steel with nickel-base filler metals BNi-2, BNi-5 and BNi-7","volume":"6","author":"Lugscheider","year":"1983","journal-title":"Weld. J."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"122","DOI":"10.1016\/j.matdes.2017.07.054","article-title":"Enhanced strength and ductility of bulk CoCrFeMnNi high entropy alloy having fully recrystallized ultrafine-grained structure","volume":"133","author":"Sun","year":"2017","journal-title":"Mater. Des."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"603","DOI":"10.1016\/j.msea.2017.12.022","article-title":"Transition of twinning behavior in CoCrFeMnNi high entropy alloy with grain refinement","volume":"712","author":"Sun","year":"2018","journal-title":"Mater. Sci. Eng. A"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1016\/j.intermet.2013.03.018","article-title":"Tensile properties of high- and medium-entropy alloys","volume":"39","author":"Gali","year":"2013","journal-title":"Intermetallics"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"324","DOI":"10.1016\/j.msea.2017.07.079","article-title":"Trade-off between tensile property and formability by partial recrystallization of CrMnFeCoNi high-entropy alloy","volume":"703","author":"Bae","year":"2017","journal-title":"Mater. Sci. Eng. A"},{"key":"ref_24","unstructured":"Dieter, G.E. (1988). Mechanical Metallurgy, McGraw-Hill Book Company."},{"key":"ref_25","unstructured":"Schwartz, M.M. (2003). Brazing, ASM International. [2nd ed.]."}],"container-title":["Entropy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1099-4300\/21\/3\/283\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T12:39:06Z","timestamp":1760186346000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1099-4300\/21\/3\/283"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,3,15]]},"references-count":25,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2019,3]]}},"alternative-id":["e21030283"],"URL":"https:\/\/doi.org\/10.3390\/e21030283","relation":{},"ISSN":["1099-4300"],"issn-type":[{"value":"1099-4300","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,3,15]]}}}