Sintering temperature optimization of ultra-fine Tungsten Carbide Cobalt (WC-CO) tool insert with addition of Carbon (C) and Vanadium Carbide (VC) \ Muhammad Haikal Muhammad Mukhtar

Muhammad Mukhtar, Muhammad Haikal (2017) Sintering temperature optimization of ultra-fine Tungsten Carbide Cobalt (WC-CO) tool insert with addition of Carbon (C) and Vanadium Carbide (VC) \ Muhammad Haikal Muhammad Mukhtar. [Student Project] (Unpublished)

Download

[thumbnail of 35001.pdf] Text
35001.pdf

Download (195kB)

Abstract

Production of Tungsten Carbide Cobalt (WC-Co) tool inserts have been the subject of interest for multiple research programmes around the world, with the hope of improving mechanical properties as the result from reducing grain size from sub¬micron level to ultra-fine level. WC-Co tool inserts are manufactured through powder metallurgy (PM) route where sintering is the key process. However, the optimum sintering temperature of ultra-fine WC-Co has not yet been identified. Inappropriate sintering temperature may contribute to lower mechanical properties. Lower sintering temperature will lead to incomplete sintering while too high sintering temperature will contribute to grain growth activities. In this work, the optimized sintering temperature was studied on WC-Co tool insert with the addition of 0.2% carbon and 0.6% vanadium carbide. The samples were fabricated by PM process and sintered in Nitrogen 95%-Hydrogen 5% environment at three different temperatures of 1350°C, 1400°C, and 1450°C with constant heating rate and 1 hour holding time. The effect of sintering temperature on the mechanical properties of WC-Co-C-VC was determined by transverse rupture strength (TRS) test, Vickers hardness test, density measurement, and microstructure analysis. Test results implies that samples sintered at 1400°C exhibits the best TRS, hardness, and density values along with desired microstructures formation.

Metadata

Item Type: Student Project
Creators:
Creators
Email
Muhammad Mukhtar, Muhammad Haikal
2013946827
Contributors:
Contribution
Name
Email / ID Num.
Thesis advisor
Budin, Ir. Dr. Salina
UNSPECIFIED
Subjects: T Technology > TN Mining engineering. Metallurgy > Metallurgy
T Technology > TN Mining engineering. Metallurgy > Metallurgy > Powder metallurgy
Divisions: Universiti Teknologi MARA, Pulau Pinang > Permatang Pauh Campus > Faculty of Mechanical Engineering
Programme: Bachelor Of Mechanical Engineering (Manufacturing) (Hons.)
Item ID: 35001
Uncontrolled Keywords: Tungsten Carbide Cobalt (WC-Co) , Powder Metallurgy (PM), Transverse Rupture Strength (TRS)
URI: https://ir.uitm.edu.my/id/eprint/35001

Fulltext

Fulltext is available at:
  • Bilik Koleksi Akses Terhad PTAR | Kampus Permatang Pauh, Pulau Pinang
  • ID Number

    35001

    Indexing


    View in Google Scholar

    Edit Item
    Edit Item