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- Title
Finite element analysis of thermal stresses in functionally graded cemented carbides.
- Authors
Huang, Z. Q.; He, Y. H.; Li, P. L.
- Abstract
In this study, finite element method and X-ray diffraction measurement were used to determine the thermal stress distribution of functionally graded WC-Co composites. The calculated results show that high stress concentration occurs in the cobalt gradient zone, tensile stress pile-up occurs in the cobalt rich zone and compressive stress pile-up occurs in the surface zone. As the sintering time is increased, compressive residual stress in the surface zone has a tendency of decreasing. The maximum value of compressive stress in the surface zone is 250 MPa. The results are in good agreement with X-ray diffraction measurement results. For the purpose of this work, the material design method is achieved by changing the calculated parameters.
- Subjects
FUNCTIONALLY gradient materials; THERMAL stresses; FINITE element method; X-ray diffraction; STRESS concentration; SINTERING; ELASTOPLASTICITY
- Publication
Powder Metallurgy, 2010, Vol 53, Issue 4, p278
- ISSN
0032-5899
- Publication type
Article
- DOI
10.1179/003258909X12573447241545