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Heat treatment, microstructure and properties of 75Cr1 steel, for use in heavy loaded elements

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Abstract
This study aims to optimize the heat treatment of tool steel 75Cr1 which is used for heavy loaded elements in transmissions. A salt bath was used to quench and temper the steel at different temperatures. Mechanical tests and microstructural characterization were done to define the heat treatment parameters corresponding to the optimal performance of the elements. Optical microscopy, electron back scatter diffraction and x-ray diffraction were used to characterize the microstructure, while tensile tests and toughness tests were employed to determine the mechanical properties after different heat treatments. It was found that the yield strength decreases with increasing annealing temperature and that the toughness decreases with increasing annealing time and temperature. The changes of the mechanical properties are discussed in relation with the thermal treatment and the corresponding microstructures.
Keywords
tool steel, microstructure, Heat treatment

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Chicago
Verdiere, An, Alvaro Béjar Ljanes, Felipe Manuel Castro Cerda, Lili Crebolder, and Roumen Petrov. 2016. “Heat Treatment, Microstructure and Properties of 75Cr1 Steel, for Use in Heavy Loaded Elements.” In Machines Technologies Materials, 2:38–41. Sofia, Bulgaria.
APA
Verdiere, A., Béjar Ljanes, A., Castro Cerda, F. M., Crebolder, L., & Petrov, R. (2016). Heat treatment, microstructure and properties of 75Cr1 steel, for use in heavy loaded elements. Machines technologies materials (Vol. 2, pp. 38–41). Presented at the Machines technologies materials, Sofia, Bulgaria.
Vancouver
1.
Verdiere A, Béjar Ljanes A, Castro Cerda FM, Crebolder L, Petrov R. Heat treatment, microstructure and properties of 75Cr1 steel, for use in heavy loaded elements. Machines technologies materials. Sofia, Bulgaria; 2016. p. 38–41.
MLA
Verdiere, An, Alvaro Béjar Ljanes, Felipe Manuel Castro Cerda, et al. “Heat Treatment, Microstructure and Properties of 75Cr1 Steel, for Use in Heavy Loaded Elements.” Machines Technologies Materials. Vol. 2. Sofia, Bulgaria, 2016. 38–41. Print.
@inproceedings{8054156,
  abstract     = {This study aims to optimize the heat treatment of tool steel 75Cr1 which is used for heavy loaded elements in transmissions. A salt bath was used to quench and temper the steel at different temperatures.  Mechanical tests and microstructural characterization were done to define the heat treatment parameters corresponding to the optimal performance of the elements. Optical microscopy, electron back scatter diffraction and x-ray diffraction were used to characterize the microstructure, while tensile tests and toughness tests were employed to determine the mechanical properties after different heat treatments. It was found that the yield strength decreases with increasing annealing temperature and that the toughness decreases with increasing annealing time and temperature. The changes of the mechanical properties are discussed in relation with the thermal treatment and the corresponding microstructures.},
  author       = {Verdiere, An and B{\'e}jar Ljanes, Alvaro and Castro Cerda, Felipe Manuel and Crebolder, Lili and Petrov, Roumen},
  booktitle    = {Machines technologies materials},
  issn         = {1310-3946},
  keyword      = {tool steel,microstructure,Heat treatment},
  language     = {eng},
  location     = {Borovets, Bulgaria},
  pages        = {38--41},
  title        = {Heat treatment, microstructure and properties of 75Cr1 steel, for use in heavy loaded elements},
  volume       = {2},
  year         = {2016},
}