scholarly journals The Influence of Carbon Content on High Temperature Transverse-Rupture Strength of WC-Co Cemented Carbide

1978 ◽  
Vol 25 (3) ◽  
pp. 94-98 ◽  
Author(s):  
Hisashi Suzuki ◽  
Koji Hayashi ◽  
Yasuro Taniguchi
Keyword(s):  
High Temperature ◽  
Carbon Content ◽  
Rupture Strength ◽  
Cemented Carbide ◽  
Transverse Rupture Strength

scholarly journals Effect of Specimen Volume on Transverse-Rupture Strength of WC-10%Co Cemented Carbide

1977 ◽  
Vol 24 (8) ◽  
pp. 232-235
Author(s):  
Hisashi Suzuki ◽  
Teruyoshi Tanase ◽  
Fumio Nakayama ◽  
Koji Hayashi
Keyword(s):  
Rupture Strength ◽  
Cemented Carbide ◽  
Transverse Rupture Strength ◽  
Specimen Volume

Simultaneously high fracture toughness and transverse rupture strength in ultrafine cemented carbide

CrystEngComm ◽  
2013 ◽  
Vol 15 (17) ◽  
pp. 3305 ◽  
Author(s):  
Chongbin Wei ◽  
Xiaoyan Song ◽  
Jun Fu ◽  
Xuemei Liu ◽  
Haibin Wang ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Rupture Strength ◽  
Cemented Carbide ◽  
High Fracture Toughness ◽  
High Fracture ◽  
Transverse Rupture Strength

Mechanical Properties of WC-Co Cemented Carbide Prepared via Vacuum Sintering

2013 ◽  
Vol 275-277 ◽  
pp. 1917-1920
Author(s):  
Bing Liang Liang ◽  
Yun Long Ai ◽  
Chang Hong Liu ◽  
Nan Jiang
Keyword(s):  
Mechanical Properties ◽  
Phase Composition ◽  
Relative Density ◽  
Sintering Temperature ◽  
Rupture Strength ◽  
Cemented Carbide ◽  
Vacuum Sintering ◽  
Transverse Rupture Strength ◽  
Temperature Range ◽  
Peak Value

WC-Co cemented carbide specimens were prepared via vacuum sintering. The influences of composition and sintering temperature on phase composition, microstructure and mechanical properties of WC-Co cemented carbide were investigated. The results show that dense specimens were obtained in the sintering temperature range of 1280~1400°C and the relative density reached over 95%. Only WC and Co3W3C (-phase) were detected by XRD without any else phases, even though Co. With the ascended sintering temperature, hardness increased and the transverse rupture strength (TRS) ascended to peak value and then descended. WC-Co cemented carbide with excellent mechanical properties (HRA>90, TRS~700MPa and KIC>10MPa•m1/2) were obtained.

Effects of Microcracks in CVD Coating Layers on Cemented Carbide and Cermet Substrates on Residual Stress and Transverse Rupture Strength

1997 ◽  
Vol 119 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Sakae Katayama ◽  
Masayuki Hashimura
Keyword(s):  
Residual Stress ◽  
Coating Layer ◽  
Rupture Strength ◽  
Cemented Carbide ◽  
Tensile Residual Stress ◽  
Transverse Rupture Strength ◽  
Beneficial Effects ◽  
Thermal Expansion Coefficients ◽  
Coating Layers ◽  
Expansion Coefficients

Microcracks were mechanically induced in the CVD coating layers on two types of cemented carbides with different thermal expansion coefficients, and one type of cermet. The microcracks were found to have beneficial effects on residual stress, transverse rupture strength, and chipping resistance during interrupted cutting. Residual stress in the coating on cemented carbide is tensile. Tensile residual stress decreases with increasing microcrack width and decreasing microcrack distance. Induction of 20 μm-distant and 0.025 μm-wide cracks relieves tensile residual stress by about 0.5 GPa, increases transverse rupture strength by about 0.70 GPa, and almost doubles the chipping resistance. Residual stress in the coating on cermet is compressive. Microcracks in the coating layer do not change residual stress or transverse rupture strength.

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