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作者:

Bridges, Denzel (Bridges, Denzel.) | Zhang, Suhong (Zhang, Suhong.) | Lang, Samantha (Lang, Samantha.) | Gao, Minrui (Gao, Minrui.) | Yu, Zhenzhen (Yu, Zhenzhen.) | Feng, Zhili (Feng, Zhili.) | Hu, Anming (Hu, Anming.)

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EI Scopus

摘要:

Inconel 718 is a popular precipitation-hardened, corrosion-resistant nickel superalloy that is widely used in aerospace turbines, liquid fueled rockets, and other high temperature applications. To better match the high temperature stability of Inconel 718, a MnCoCrNiFe high entropy alloy (HEA) bulk material and nanoparticle paste (nanopaste) were developed. Two brazing techniques were investigated for this brazing material: laser brazing and vacuum brazing. Laser brazing produces a small heat affected zone and very short brazing time. For vacuum brazing, transient liquid phase bonding is employed for brazing Inconel 718 to exploit a lower processing temperature by heating above the solidus line of HEA in conjunction with the size-dependent melting point depression behavior of nanoparticles. The mechanical properties and microstructural evolution of the brazed joints were determined to build a fundamental understanding of HEA brazing filler metals and the difference in behavior of the bulk brazing filler metals and the brazing nanopaste. © Copyright 2017 MS&T17.

关键词:

Brazing Brazing filler metals Chromium alloys Cobalt alloys Corrosion resistance Entropy Fillers Heat affected zone High-entropy alloys High temperature applications High temperature corrosion Iron alloys Manganese alloys Materials handling equipment Nanoparticles Nickel alloys Precipitation (chemical) Rockets Superalloys Vacuum brazing

作者机构:

  • [ 1 ] [Bridges, Denzel]Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville; 37996, United States
  • [ 2 ] [Zhang, Suhong]Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville; 37996, United States
  • [ 3 ] [Lang, Samantha]Department of Materials Science and Engineering, University of Tennessee, Knoxville; 37996, United States
  • [ 4 ] [Gao, Minrui]Department of Metallurgy and Materials Engineering, Colorado School of Mines, Golden; CO; 80401, United States
  • [ 5 ] [Yu, Zhenzhen]Department of Metallurgy and Materials Engineering, Colorado School of Mines, Golden; CO; 80401, United States
  • [ 6 ] [Feng, Zhili]Oak Ridge National Laboratory, Oak Ridge; TN; 37831, United States
  • [ 7 ] [Hu, Anming]Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville; 37996, United States
  • [ 8 ] [Hu, Anming]Institute of Laser Engineering, Beijing University of Technology, 100 Pingle Yuan, Chaoyang District, Beijing; 100124, China

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年份: 2017

卷: 2

页码: 968-970

语种: 英文

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