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Material design and processing of a new class of titanium boride cermets with tough metallic phases and mechanical properties

Published online by Cambridge University Press:  26 October 2018

Alexander Lark ,
Jun Du Open the ORCID record for Jun Du [Opens in a new window]  and
K.S. Ravi Chandran
Alexander Lark
Affiliation:
Department of Metallurgical Engineering, The University of Utah, Salt Lake City, Utah 84112, USA
Jun Du*
Affiliation:
Department of Metallurgical Engineering, The University of Utah, Salt Lake City, Utah 84112, USA
K.S. Ravi Chandran*
Affiliation:
Department of Metallurgical Engineering, The University of Utah, Salt Lake City, Utah 84112, USA
*
a)Address all correspondence to this author. e-mail: ravi.chandran@utah.edu
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Abstract

The design and the processing of a new class of titanium boride (TiB)-based bulk cermets containing a metallic phase (β-Ti phase) for toughening is presented. The general approach is rapid reaction and densification, using starting powders of Ti, TiB2, Fe, and Mo, by electric-field-activated sintering. The cermets consist of two-phase microstructures in which the boride phase formed as a networked structure of TiB whiskers that were created in situ upon the reaction between the powders. Hardness, flexural strength, and fracture toughness measurements of these materials revealed that they possess an interesting set of properties up to: hardness values of 1090 kg/mm2, flexural strength values of 953 MPa, and fracture toughness values of 18 MPa m1/2. A remarkable finding is that although the metallic phase fractured by microscopic cleavage, the cermets showed good fracture toughness values. The present study not only illustrates the process details and microstructure leading to these properties but also provides a broad powder metallurgical approach to design and synthesize cermets that may yield further improved properties.

Keywords

titaniumboridenanostructureceramicstrengthtougheningsinteringelectric-field
Type
Article
Information
Journal of Materials Research , Volume 33 , Issue 24 , 28 December 2018 , pp. 4296 - 4306
Copyright
Copyright © Materials Research Society 2018 

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References

REFERENCES

Exner, H.E.: Physical and chemical nature of cemented carbides. Int. Met. Rev. 24, 149 (1979).CrossRefGoogle Scholar
Ettmayer, P.: Hardmetals and cermets. Annu. Rev. Mater. Sci. 19, 145 (1989).CrossRefGoogle Scholar
Moskowitz, D. and Humenik, J.: TiC-based cermets for cutting applications. Mod. Dev. Powder Metall. 14, 307 (1985).Google Scholar
Brown, I.W.M. and Owers, W.R.: Fabrication, microstructure and properties of Fe–TiC ceramic–metal composites. Curr. Appl. Phys. 4, 171 (2004).CrossRefGoogle Scholar
Subramanian, R. and Schneibel, J.H.: FeAl–TiC and FeAl–WC composites—Melt infiltration processing, microstructure and mechanical properties. Mater. Sci. Eng., A 244, 103 (1998).CrossRefGoogle Scholar
Zhang, S.Y.: Titanium carbonitride-based cermets: Processes and properties. Mater. Sci. Eng., A 163, 141 (1993).CrossRefGoogle Scholar
Gurland, J.: New scientific approaches to development of tool materials. Int. Met. Rev. 33, 151 (1988).CrossRefGoogle Scholar
Sigl, S.L. and Fischmeister, H.F.: On the fracture toughness of cemented carbides. Acta Metall. 36, 887 (1988).CrossRefGoogle Scholar
Ravichandran, K.S.: Fracture toughness of two-phase WC-Co cermets. Acta Metall. Mater. 42, 143 (1994).CrossRefGoogle Scholar
Humenik, M. Jr. and Parikh, N.M.: Cermets: I, fundamental concepts related to micro-structure and physical properties of cermet systems. J. Am. Ceram. Soc. 39, 60 (1956).CrossRefGoogle Scholar
Parikh, N.M. and Humenik, M. Jr.: Cermets: II, wettability and microstructure studies in liquid-phase sintering. J. Am. Ceram. Soc. 40, 315 (1957).CrossRefGoogle Scholar
Madtha, S., Lee, C., and Ravi Chandran, K.S.: Physical and mechanical properties of nanostructured titanium boride (TiB) ceramic. J. Am. Ceram. Soc. 91, 1319–1321 (2008).CrossRefGoogle Scholar
Atri, R.R., Ravichandran, K.S., and Jha, S.K.: Elastic properties of in situ processed Ti–TiB composites measured by impulse excitation of vibration. Mater. Sci. Eng., A 271, 150 (1999).CrossRefGoogle Scholar
Panda, K.B. and Ravi Chandran, K.S.: First principles determination of elastic constants and chemical bonding of titanium boride (TiB) on the basis of density functional theory. Acta Mater. 54, 1641 (2006).CrossRefGoogle Scholar
Nakane, S., Takano, Y., Yoshinaka, M., Hirota, K., and Yamaguchi, O.: Fabrication and mechanical properties of titanium boride ceramics. J. Am. Ceram. Soc. 82, 1627 (1999).CrossRefGoogle Scholar
Sahay, S.S., Ravichandran, K.S., and Atri, R.: Evolution of microstructure and phases in in situ processed Ti–TiB composites containing high volume fractions of TiB whiskers. J. Mater. Res. 14, 4214 (1999).CrossRefGoogle Scholar
Madtha, S. and Ravi Chandran, K.S.: Reactive-sinter-processing and attractive mechanical properties of bulk and nanostructured titanium boride. J. Am. Ceram. Soc. 95, 117 (2012).CrossRefGoogle Scholar
Titanium–Boron System: ASM Handbook: Alloy Phase Diagrams, Vol. 3 (ASM International, Materials Park, Ohio, 1992); p. 440.Google Scholar
Conrad, H.: Effect of interstitial solutes on the strength and ductility of titanium. Prog. Mater. Sci. 26, 123 (1981).CrossRefGoogle Scholar
Du, J. and Ravi Chandran, K.S.: Formation of bulk titanium boride (TiB) nano‐ceramic with Fe–Mo addition by electric-field-activated-sintering. J. Am. Ceram. Soc. 100, 5450 (2017).CrossRefGoogle Scholar
Jindal, V. and Ravi Chandran, K.S.: Thermodynamic Assessment of Ti–B–Fe–Mo Quaternary System (Department of Metallurgical Engineering, University of Utah, Salt Lake City, 2018). (unpublished research).Google Scholar
ASTM International: ASTM C1161-13 Standard test method for flexural strength of advanced ceramics at ambient temperature. ASTM Stand. B. C. 1 (2013); pp. 1–19.Google Scholar
ASTM International: ASTM C1421-10 Standard test methods for determination of fracture toughness of advanced ceramics at ambient temperature. ASTM Stand. B.I. 1 (2011).Google Scholar
Panda, K. and Ravi Chandran, K.S.: Synthesis of ductile Ti–TiB composites with β-Ti alloy matrix. Metall. Mater. Trans. A 34, 1371 (2003).CrossRefGoogle Scholar
Cotton, J.D., Briggs, R.D., Boyer, R.R., Tamirisakandala, S., Russo, P., Shchetnikov, N., and Fanning, J.C.: State of the art in beta titanium alloys for airframe applications. JOM 67, 1281 (2015).CrossRefGoogle Scholar
Du, J. and Ravi Chandran, K.S.: CALPHAD-guided alloy design and processing for high strength and high toughness in titanium boride (TiB) nanoceramic system. Acta Mater. (2018). (submitted to).Google Scholar
Du, J. and Ravi Chandran, K.S.: Department of Metallurgical Engineering, University of Utah, Salt Lake City, Utah (unpublished research).Google Scholar
Ravichandran, K.S.: A survey of toughness in ductile phase composites. Scr. Metall. Mater. 26, 1389 (1992).CrossRefGoogle Scholar
Przystupa, M.A. and Courtney, T.H.: Fracture in equiaxed two phase alloys: Part II. Fracture in alloys with isolated plastic particles. Metall. Trans. A 13, 881 (1982).CrossRefGoogle Scholar
Flinn, B.D., Rühle, M., and Evans, A.G.: Toughening in composites of Al2O3 reinforced with Al. Acta Metall. 37, 3001 (1989).CrossRefGoogle Scholar
Chermant, J.L. and Osterstock, F.: Fracture toughness and fracture of WC-Co composites. J. Mater. Sci. 11, 1939 (1976).CrossRefGoogle Scholar
Pickens, J.R. and Gurland, J.: The fracture toughness of WCCo alloys measured on single-edge notched beam specimens precracked by electron discharge machining. Mater. Sci. Eng. 33, 135 (1978).CrossRefGoogle Scholar
Schneibel, J.H., Carmichael, C.A., Specht, E.D., and Subramanian, R.: Liquid-phase sintered iron aluminide-ceramic composites. Intermetallics 5, 61 (1997).CrossRefGoogle Scholar
Subramanian, R., Schneibel, J.H., Alexander, K.B., and Plucknett, K.P.: Iron aluminide-titanium carbide composites by pressureless melt infiltration—Microstructure and mechanical properties. Scr. Mater. 35, 583 (1996).CrossRefGoogle Scholar
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