Influences of carbon content on the properties and microstructure of ultrafine WC-10Co cemented carbide

Xiaoliang Shi; Hua Yang; Sheng Wang; Gangqin Shao; Xinglong Duan

doi:10.1007/s11595-006-3473-8

Journal of Wuhan University of Technology Materials Science Edition ›› 2007, Vol. 22 ›› Issue (3) : 473 -477. DOI: 10.1007/s11595-006-3473-8

Article

Influences of carbon content on the properties and microstructure of ultrafine WC-10Co cemented carbide

Author information +

History +

PDF

Abstract

WC-10Co nanocrystalline composite powders prepared by spray pyrogenation-continuous reduction and carburization technology were consolidated by vacuum sintering plus hot isostatic pressing (HIP). Influences of carbon content on properties and microstructure of ultrafine WC-10Co cemented carbide were investigated. The results show that the relative density of the ultrafine WC-10Co cemented carbides can reach 99.72%, and the transverse rupture strength (TRS) was higher than 3 890 MPa, Rockwell A hardness (HRA) was higher than 92.5, the average grain size was less than 460 nm, when carbon content in nanocrystalline composite powder was 5.54wt% and the ball-milled time was 48 hours, ultrafine WC-10Co cemented carbide with excellent properties and homogeneous microstructure was obtained.

Keywords

WC-10Co / nanocrystalline composite powder / carbon content / mechanical properties / microstructure

Cite this article

Download citation ▾

Xiaoliang Shi, Hua Yang, Sheng Wang, Gangqin Shao, Xinglong Duan. Influences of carbon content on the properties and microstructure of ultrafine WC-10Co cemented carbide. Journal of Wuhan University of Technology Materials Science Edition, 2007, 22(3): 473-477 DOI:10.1007/s11595-006-3473-8

登录浏览全文

4963

注册一个新账户忘记密码

References

Publishing order | Descend order by publishing year | Descend order by cited within

[1]	Allibert C. H. Sintering Features of Cemented Carbides WC-Co Processed from Fine Powders[J]. Int. J.Ref. Met. Hard Mater., 2001, 19(1): 53-61.

[2]	Cha S. I., Hong S. H., Ha G. H., . Mechanical Properties of WC-10Co Cemented Carbides Sintered from Nanocrystalline Spray Conversion Processed Powders[J]. Int. J.Ref. Met. Hard Mater., 2001, 19(4–6): 397-403.

[3]	Agrawal D. K. Microwave Processing of Ceramics[J]. Curr. Opin. Solid State Mater. Sci., 1998, 3(5): 480-485.

[4]	Andrén H. O. Microstructure Development During Sintering and Heat-treatment of Cemented Carbides and Cermets[J]. Mater. Chem. Phys., 2001, 67(1–3): 209-213.

[5]	Upadhyaya G. S. Materials Science of Cemented Carbides-an Overview[J]. Mater. Des., 2001, 22(6): 483-489.

[6]	Upadhyaya A., Sarathy D., Wagner G. Advances in Sintering of Hard Metals[J]. Mater. Des., 2001, 22(6): 499-506.

[7]	Carroll D. F. Sintering and Microstructural Development in WC/Co-based Alloys Made with Superfine WC Powder[J]. Int. J.Ref. Met. Hard Mater., 1999, 17(1–3): 123-132.

[8]	Gille G., Szesny B., Dreyer K., . Submicron and Ultrafine Grained Hardmetals for Microdrills and Metal Cutting Inserts[J]. Int. J.Ref. Met. Hard Mater., 2002, 20(1): 3-32.

[9]	Cao L. H., Shi D. X., Ouyang S. X., . Study on Preparation of Ceramic Matrix Composite of WC-Co Ultrafine Powders[J]. J. Wuhan Univ. Tech.-Mater. Sci. Ed., 1995, 10(2): 40-46.

[10]	Zhou J., Cheng J. P., Mei B. C., . Research on Microwave Sintering Alumina Ceramics[J]. J. Wuhan Univ. Tech.-Mater. Sci. Ed., 1998, 13(3): 34-38.

[11]	Shao G. Q., Duan X. L., Xie J. R., . Sintering of Nanocrystalline WC-Co Composite Powder[J]. Rev. Adv. Mater. Sci., 2003, 5(4): 281-286.

[12]	Shi X. L., Shao G. Q., Duan X. L., . Mechanical Properties, Phases and Microstructure of Ultrafine Hardmetals Prepared by WC-6.29Co Nanocrystalline Composite Powder[J]. Mater. Sci. Eng. A, 2005, 392(1–2): 335-339.

[13]	Ferkel H., Hellmig R. J. Effect of Nanopowder Deagglomeration on the Densities of Nanocrystalline Ceramic Green Bodies and Their Sintering Behaviour[J]. Nanostruct. Mater., 1999, 11(5): 617-622.