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Life extension heat treatment of IN 783 bolts

  • Qiang Zhao , Jiaqing Wang , Junjian Liu , Yue Wu und Xiaodong Du
Veröffentlicht/Copyright: 20. Dezember 2019
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Materials Testing
Aus der Zeitschrift Materials Testing Band 62 Heft 1

Abstract

A large number of strip-like structures were found distributed along the axial direction of inconel 783 alloy bolts. Large-sized Nb were concentrated and precipitated in the interior, which makes the material structure uneven, resulting in a reduction of toughness and plasticity. Adopting a heat treatment method for increasing the solution temperature and at the same time prolonging the aging time improved the material properties to a certain extent. The results show that the large Nb easily develops inclusions, which reduces the impact properties of the material. After heat treatment, the strip-like structures disappeared, the size of the Nb decreased and nano-scale carbides were precipitated out, thus increasing plasticity by 11.5 %, toughness by nearly two times and improving the comprehensive mechanical properties in general.

∗Correspondence Address, Professor Xiaodong Du, School of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China, E-mail: ,

Xiaodong Du, born in 1966, is Professor and Doctoral Supervisor as well as Head of the Metal Materials Engineering Department and the School of Materials Science and Engineering at the Hefei University of Technology. He graduated from the Hefei University of Technology as MSc in Materials Science in 1993 and then taught at the university. He graduated from the Hefei University of Technology with a Doctoral degree in Materials Science in 2006. He is mainly engaged in the research and development of high-performance metal materials.

Qiang Zhao, born in 1994, is a Postgraduate Student at the Hefei University of Technology in Hefei, China, with research interests in high-performance metal materials.

Jiaqing Wang, born in 1984, works at the Datang Boiler and Pressure Vessel Testing Center Co. Ltd. as Director of the Technical Department and Senior Engineer, with research interests in high-performance metal materials.

Junjian Liu, born in 1985, works at the Datang Boiler and Pressure Vessel Testing Center Co. Ltd. as an Engineer in the Department of Physics and Chemistry with research interests in high-performance metal materials.

Yue Wu, born in 1989, works at the Datang Boiler and Pressure Vessel Testing Center Co. Ltd. as an engineer in the Department of Physics and Chemistry, with research interests in high-performance metal materials.

References

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Published Online: 2019-12-20
Published in Print: 2020-01-07

© 2020, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Inhalt/Contents
  2. Contents
  3. Fachbeiträge/Technical Contributions
  4. Strain rate effect on the acoustic emission characteristics of concrete under uniaxial tension
  5. Characterization of thick carbon/basalt hybrid fiber polyester composites with graphene nanoplatelets
  6. Influence of powder nitriding on the mechanical behavior of laser-powder bed fusion processed tool steel X30CrMo7-2
  7. Consideration of imperfections and support effects in the fatigue assessment of welded cruciform joints
  8. Roll optimization via numerical modeling of stress distribution
  9. Submerged arc welding of Ramor 500 Steel and numerical modeling of the residual stress
  10. Life extension heat treatment of IN 783 bolts
  11. Increased load bearing capacity of mechanically joined FRP/metal joints using a pin structured auxiliary joining element
  12. Innovative characterization and mechanical properties of natural cellulosic Coccinia Indica fiber and its composites
  13. Post-weld heat treatment effects on the tensile properties of cold metal arc welded AA 6061-T6 aluminum joints
  14. Wear and corrosion behavior of coconut shell ash (CSA) reinforced Al6061 metal matrix composites
  15. Optimization of cutting parameters with respect to roughness for machining of hardened AISI 1040 steel
  16. Shunting effects on the resistance spot welding parameters of DP600
  17. Properties of P460-S355 submerged arc welds
  18. BEZUGSQUELLEN
  19. Materials Testing
https://doi.org/10.3139/120.111452

Artikel in diesem Heft

  1. Inhalt/Contents
  2. Contents
  3. Fachbeiträge/Technical Contributions
  4. Strain rate effect on the acoustic emission characteristics of concrete under uniaxial tension
  5. Characterization of thick carbon/basalt hybrid fiber polyester composites with graphene nanoplatelets
  6. Influence of powder nitriding on the mechanical behavior of laser-powder bed fusion processed tool steel X30CrMo7-2
  7. Consideration of imperfections and support effects in the fatigue assessment of welded cruciform joints
  8. Roll optimization via numerical modeling of stress distribution
  9. Submerged arc welding of Ramor 500 Steel and numerical modeling of the residual stress
  10. Life extension heat treatment of IN 783 bolts
  11. Increased load bearing capacity of mechanically joined FRP/metal joints using a pin structured auxiliary joining element
  12. Innovative characterization and mechanical properties of natural cellulosic Coccinia Indica fiber and its composites
  13. Post-weld heat treatment effects on the tensile properties of cold metal arc welded AA 6061-T6 aluminum joints
  14. Wear and corrosion behavior of coconut shell ash (CSA) reinforced Al6061 metal matrix composites
  15. Optimization of cutting parameters with respect to roughness for machining of hardened AISI 1040 steel
  16. Shunting effects on the resistance spot welding parameters of DP600
  17. Properties of P460-S355 submerged arc welds
  18. BEZUGSQUELLEN
  19. Materials Testing
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