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A comparative assessment of the hardness of nano-structured bainitic steel affected by using various quenchants

Polishetty, Ashwin, Sonavane, Chinmay and Littlefair, Guy 2014, A comparative assessment of the hardness of nano-structured bainitic steel affected by using various quenchants, Materials performance and characterization, vol. 3, no. 4, pp. 58-65, doi: 10.1520/MPC20130101.

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Title A comparative assessment of the hardness of nano-structured bainitic steel affected by using various quenchants
Author(s) Polishetty, AshwinORCID iD for Polishetty, Ashwin orcid.org/0000-0002-8572-6024
Sonavane, Chinmay
Littlefair, Guy
Journal name Materials performance and characterization
Volume number 3
Issue number 4
Start page 58
End page 65
Total pages 8
Publisher ASTM International
Place of publication Conshohocken, Pa.
Publication date 2014-12
ISSN 2165-3992
Keyword(s) Nano-structured bainitic steel
Quenchant
Hardness
Summary Quenching, in heat treatment, plays a vital role in controlling material properties. It is the most important step in manipulating the strength of steel. It involves cooling the material from the austenitizing temperature at different cooling rates using variations in quenchants to obtain corresponding material properties. The commonly used quenchants are water, oil, and brine. The cooling rate is the rate at which heat is ejected from the material by the quenchant. The effectiveness of the quenchant is judged by its ability to absorb heat from the material and thermally conduct. Because of stringent regulations regarding use and disposal, there is a need to develop new, environmentally friendly quenchants. The experimental design in this study consisted of quenching austenitized nano-structured bainitic steel in four different quenchants, namely, water, oil, brine, and 1 M sodium carbonate solution. This research gives the insight of substituting conventional quenchants with 1 M sodium carbonate solution. The final four samples were characterized using metallography. A comparative study of the hardness of nano-structured bainitic steel quenched in the newly developed quenchant (i.e., 1 M sodium carbonate solution) and of steel quenched with the conventional one is done. All the results are tabulated, and the applicability of the quenchants is discussed.
Language eng
DOI 10.1520/MPC20130101
Field of Research 091006 Manufacturing Processes and Technologies (excl Textiles)
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C2.1 Other contribution to refereed journal
ERA Research output type C Journal article
Copyright notice ©2014, ASTM International
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080392

Document type: Journal Article
Collection: School of Engineering
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