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Effect of Cryogenic Treatment on Microstructure and Wear Characteristics of AISI M35 HSS

Published: 10 March 2013
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Abstract

Cryogenic treatment has been widely acknowledged as a means of improving wear resistance of tool materials. A Comparative study on conventionally heat treated and cryogenic treated AISI M35 grade high-speed steel specimens has been presented in this paper. Specimens initially subjected to conventional heat treatment at austenitizing temperature of 1200 ̊C were subsequently subjected to shallow cryogenic treatment at -84 ̊C for 8 hours and deep cryogenic treatment at –195 ̊C for 24 hours followed by double tempering at 200˚C. Presence of retained austenite was studied at the end of each of the above treatment using XRD analyzer. An estimated 19% retained austenite present at the end of conventional heat treatment was reduced to 5% at the end of shallow cryogenic treatment, while deep cryogenic treatment practically removed all traces of austenite in the sample. Changes in the microstructure were studied using SEM. Fine precipitates of carbides of size 0.3-0.5µ were observed in cryogenically treated samples. Variation in mechanical properties such as toughness and hardness has been studied. There was no change in toughness due to cryogenic treatment and it corroborates well with the results of fractography. Wear characteristics were studied using pin on disc wear tester. The operative modes and mechanisms of wear have been identified as severe delaminative and mild oxidative from the morphology of worn surface of pin. The results unambiguously confirm enhancement in hardness and wear resistance of cryogenically treated specimens.

Published in International Journal of Materials Science and Applications (Volume 2, Issue 2)
DOI 10.11648/j.ijmsa.20130202.14
Page(s) 56-60
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2013. Published by Science Publishing Group

Keywords

High - Speed Steel, Cryogenic Treatment, Wear Resistance, Retained Austenite, Martensite, Morphology, Fractography

References
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[16] M.C.Huang,C.H.Gao, "Study on Cryogenic Phase Change and Wear Characteristic of High Speed Steel",ACTA Metal-lurgica SINICA,Vol.16 No.6,December 2003,pp 524-530.
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Cite This Article
  • APA Style

    D. Candane, N. Alagumurthi, K. Palaniradja. (2013). Effect of Cryogenic Treatment on Microstructure and Wear Characteristics of AISI M35 HSS. International Journal of Materials Science and Applications, 2(2), 56-60. https://doi.org/10.11648/j.ijmsa.20130202.14

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    ACS Style

    D. Candane; N. Alagumurthi; K. Palaniradja. Effect of Cryogenic Treatment on Microstructure and Wear Characteristics of AISI M35 HSS. Int. J. Mater. Sci. Appl. 2013, 2(2), 56-60. doi: 10.11648/j.ijmsa.20130202.14

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    AMA Style

    D. Candane, N. Alagumurthi, K. Palaniradja. Effect of Cryogenic Treatment on Microstructure and Wear Characteristics of AISI M35 HSS. Int J Mater Sci Appl. 2013;2(2):56-60. doi: 10.11648/j.ijmsa.20130202.14

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  • @article{10.11648/j.ijmsa.20130202.14,
      author = {D. Candane and N. Alagumurthi and K. Palaniradja},
      title = {Effect of Cryogenic Treatment on Microstructure and Wear Characteristics of AISI M35 HSS},
      journal = {International Journal of Materials Science and Applications},
      volume = {2},
      number = {2},
      pages = {56-60},
      doi = {10.11648/j.ijmsa.20130202.14},
      url = {https://doi.org/10.11648/j.ijmsa.20130202.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20130202.14},
      abstract = {Cryogenic treatment has been widely acknowledged as a means of improving wear resistance of tool materials. A Comparative study on conventionally heat treated and cryogenic treated AISI M35 grade high-speed steel specimens has been presented in this paper. Specimens initially subjected to conventional heat treatment at austenitizing temperature of 1200 ̊C were subsequently subjected to shallow cryogenic treatment at -84  ̊C for 8 hours and deep cryogenic treatment at –195 ̊C for 24 hours followed by double tempering at 200˚C. Presence of retained austenite was studied at the end of each of the above treatment using XRD analyzer. An estimated 19% retained austenite present at the end of conventional heat treatment was reduced to 5% at the end of shallow cryogenic treatment, while deep cryogenic treatment practically removed all traces of austenite in the sample. Changes in the microstructure were studied using SEM. Fine precipitates of carbides of size 0.3-0.5µ were observed in cryogenically treated samples. Variation in mechanical properties such as toughness and hardness has been studied. There was no change in toughness due to cryogenic treatment and it corroborates well with the results of fractography. Wear characteristics were studied using pin on disc wear tester. The operative modes and mechanisms of wear have been identified as severe delaminative and mild oxidative from the morphology of worn surface of pin. The results unambiguously confirm enhancement in hardness and wear resistance of cryogenically treated specimens.},
     year = {2013}
    }
    

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  • TY  - JOUR
    T1  - Effect of Cryogenic Treatment on Microstructure and Wear Characteristics of AISI M35 HSS
    AU  - D. Candane
    AU  - N. Alagumurthi
    AU  - K. Palaniradja
    Y1  - 2013/03/10
    PY  - 2013
    N1  - https://doi.org/10.11648/j.ijmsa.20130202.14
    DO  - 10.11648/j.ijmsa.20130202.14
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 56
    EP  - 60
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20130202.14
    AB  - Cryogenic treatment has been widely acknowledged as a means of improving wear resistance of tool materials. A Comparative study on conventionally heat treated and cryogenic treated AISI M35 grade high-speed steel specimens has been presented in this paper. Specimens initially subjected to conventional heat treatment at austenitizing temperature of 1200 ̊C were subsequently subjected to shallow cryogenic treatment at -84  ̊C for 8 hours and deep cryogenic treatment at –195 ̊C for 24 hours followed by double tempering at 200˚C. Presence of retained austenite was studied at the end of each of the above treatment using XRD analyzer. An estimated 19% retained austenite present at the end of conventional heat treatment was reduced to 5% at the end of shallow cryogenic treatment, while deep cryogenic treatment practically removed all traces of austenite in the sample. Changes in the microstructure were studied using SEM. Fine precipitates of carbides of size 0.3-0.5µ were observed in cryogenically treated samples. Variation in mechanical properties such as toughness and hardness has been studied. There was no change in toughness due to cryogenic treatment and it corroborates well with the results of fractography. Wear characteristics were studied using pin on disc wear tester. The operative modes and mechanisms of wear have been identified as severe delaminative and mild oxidative from the morphology of worn surface of pin. The results unambiguously confirm enhancement in hardness and wear resistance of cryogenically treated specimens.
    VL  - 2
    IS  - 2
    ER  - 

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Author Information
  • Department of Mechanical Engineering, Women’s Polytechnic College, Pondicherry, India

  • Department of Mechanical Engineering, Pondicherry Engineering College, Pondicherry, India

  • Department of Mechanical Engineering, Women’s Polytechnic College, Pondicherry, India

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