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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12686
Title: Development of wear resistant medium carbon dual phase steels and their mechanical properties
Authors: Tyagi R.
Nath S.K.
Ray S.
Published in: Materials Science and Technology
Abstract: Dual phase (DP) steels containing four different amounts of martensite ranging from 42 to 72 vol.-% have been developed from 0.42 wt-% carbon normalised steel by intereritical heat treatment at a fixed temperature of 740°C but varying holding times followed by water quenching. Mechanical properties of dual phase steels with increasing volume fraction of martensite have been investigated highlighting the effect of martensite content. The macrohardness has been found to increase with increasing martensite content in dual phase steel. The yield and tensile strengths have been found to increase with increasing amount of martensite whereas the percentage elongation and the percentage area reduction have been found to decrease. This has been attributed to the presence of hard and brittle martensite phase, which increases the strength at the expense of ductility. The mode of fracture has been found to change from purely ductile to mixed (ductile + brittle) as the martensite volume fraction increases from 42 to 72% in dual phase steels. Friction and wear properties under dry sliding conditions have also been found to improve with increasing martensite volume fraction in dual phase steels. The applications of medium carbon DP steels in the field of mineral processing and mining have been discussed.
Citation: Materials Science and Technology (2004), 20(5): 645-652
URI: https://doi.org/10.1179/026708304225012062
http://repository.iitr.ac.in/handle/123456789/12686
Issue Date: 2004
Keywords: Dual phase steels
Mechanical properties
Wear resistant steels
ISSN: 2670836
Author Scopus IDs: 7103142168
7102759700
7402322460
Author Affiliations: Tyagi, R., Dept. of Metall. and Mat. Eng., Indian Inst. of Technology Roorkee, Roorkee 247667, India, Mechanical Engineering Group, Birla Inst. of Technol. and Science, Pilani 333031, India
Nath, S.K., Dept. of Metall. and Mat. Eng., Indian Inst. of Technology Roorkee, Roorkee 247667, India
Ray, S., Dept. of Metall. and Mat. Eng., Indian Inst. of Technology Roorkee, Roorkee 247667, India
Corresponding Author: Tyagi, R.; Dept. of Metall. and Mat. Eng., Indian Inst. of Technology Roorkee, Roorkee 247667, India; email: rajneesh00@rediffmail.com
Appears in Collections:Journal Publications [MT]

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