Process parameter optimization of pulsed electric current sintering of recycled WC-8Co powder

Mehmet Erkin Cura, Juha Lagerbom, Riina Ritasalo, Jesse Syrén, Juho Lotta, Outi Söderberg, Tapio Ritvonen, Erja Turunen, Simo-Pekka Hannula

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

The WC-8Co powder, crushed and milled from recycled hard metals, was compacted with the pulsed electric current sintering method. The smallest particles were of the size about 0.4 ìm and agglomerates 1-7 ìm. Effect of the sintering temperature and heating rate were studied. Hard metal was sintered to a density of 98.3% at 1613 K within 3.5 min under 16 MPa pressure. Density and hardness were highest for the slowest heating regime, 98.1% and HV1 1981 kg/mm2, respectively. Heating speed 100 K/min was used for fabrication of fully densed samples, sintered under pressure of 100 MPa, at 1593 K in 3 min.
Original languageEnglish
Pages (from-to)255-265
JournalEstonian Journal of Engineering
Volume15
Issue number4
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed
Event18th International Baltic Conference on Engineering Materials and Tribology, BALTMATTRIB 2009 - Tallinn, Estonia
Duration: 22 Oct 200923 Oct 2009

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Spark plasma sintering
Heating
Powders
Metals
Heating rate
Sintering
Hardness
Fabrication
Temperature

Keywords

  • pulsed electric current sintering
  • WC-Co
  • microstructure
  • density
  • hardness

Cite this

Cura, Mehmet Erkin ; Lagerbom, Juha ; Ritasalo, Riina ; Syrén, Jesse ; Lotta, Juho ; Söderberg, Outi ; Ritvonen, Tapio ; Turunen, Erja ; Hannula, Simo-Pekka. / Process parameter optimization of pulsed electric current sintering of recycled WC-8Co powder. In: Estonian Journal of Engineering. 2009 ; Vol. 15, No. 4. pp. 255-265.
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title = "Process parameter optimization of pulsed electric current sintering of recycled WC-8Co powder",
abstract = "The WC-8Co powder, crushed and milled from recycled hard metals, was compacted with the pulsed electric current sintering method. The smallest particles were of the size about 0.4 {\`i}m and agglomerates 1-7 {\`i}m. Effect of the sintering temperature and heating rate were studied. Hard metal was sintered to a density of 98.3{\%} at 1613 K within 3.5 min under 16 MPa pressure. Density and hardness were highest for the slowest heating regime, 98.1{\%} and HV1 1981 kg/mm2, respectively. Heating speed 100 K/min was used for fabrication of fully densed samples, sintered under pressure of 100 MPa, at 1593 K in 3 min.",
keywords = "pulsed electric current sintering, WC-Co, microstructure, density, hardness",
author = "Cura, {Mehmet Erkin} and Juha Lagerbom and Riina Ritasalo and Jesse Syr{\'e}n and Juho Lotta and Outi S{\"o}derberg and Tapio Ritvonen and Erja Turunen and Simo-Pekka Hannula",
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Cura, ME, Lagerbom, J, Ritasalo, R, Syrén, J, Lotta, J, Söderberg, O, Ritvonen, T, Turunen, E & Hannula, S-P 2009, 'Process parameter optimization of pulsed electric current sintering of recycled WC-8Co powder', Estonian Journal of Engineering, vol. 15, no. 4, pp. 255-265. https://doi.org/10.3176/eng.2009.4.02

Process parameter optimization of pulsed electric current sintering of recycled WC-8Co powder. / Cura, Mehmet Erkin; Lagerbom, Juha; Ritasalo, Riina; Syrén, Jesse; Lotta, Juho; Söderberg, Outi; Ritvonen, Tapio; Turunen, Erja; Hannula, Simo-Pekka.

In: Estonian Journal of Engineering, Vol. 15, No. 4, 2009, p. 255-265.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Process parameter optimization of pulsed electric current sintering of recycled WC-8Co powder

AU - Cura, Mehmet Erkin

AU - Lagerbom, Juha

AU - Ritasalo, Riina

AU - Syrén, Jesse

AU - Lotta, Juho

AU - Söderberg, Outi

AU - Ritvonen, Tapio

AU - Turunen, Erja

AU - Hannula, Simo-Pekka

PY - 2009

Y1 - 2009

N2 - The WC-8Co powder, crushed and milled from recycled hard metals, was compacted with the pulsed electric current sintering method. The smallest particles were of the size about 0.4 ìm and agglomerates 1-7 ìm. Effect of the sintering temperature and heating rate were studied. Hard metal was sintered to a density of 98.3% at 1613 K within 3.5 min under 16 MPa pressure. Density and hardness were highest for the slowest heating regime, 98.1% and HV1 1981 kg/mm2, respectively. Heating speed 100 K/min was used for fabrication of fully densed samples, sintered under pressure of 100 MPa, at 1593 K in 3 min.

AB - The WC-8Co powder, crushed and milled from recycled hard metals, was compacted with the pulsed electric current sintering method. The smallest particles were of the size about 0.4 ìm and agglomerates 1-7 ìm. Effect of the sintering temperature and heating rate were studied. Hard metal was sintered to a density of 98.3% at 1613 K within 3.5 min under 16 MPa pressure. Density and hardness were highest for the slowest heating regime, 98.1% and HV1 1981 kg/mm2, respectively. Heating speed 100 K/min was used for fabrication of fully densed samples, sintered under pressure of 100 MPa, at 1593 K in 3 min.

KW - pulsed electric current sintering

KW - WC-Co

KW - microstructure

KW - density

KW - hardness

U2 - 10.3176/eng.2009.4.02

DO - 10.3176/eng.2009.4.02

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JF - Estonian Journal of Engineering

SN - 1736-6038

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