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The Effect of Thickness of Diamond Layer on Residual Stresses in Polycrystalline Diamond Compact
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Guo-Ping XU1, 2, Qi-Wu CHEN2, Zhi-Min YIN1, Gen XU1
Chinese Journal of High Pressure Physics | 2009, 23(1) : 24 - 30
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Chinese Journal of High Pressure Physics | 2009, 23(1): 24-30
The Effect of Thickness of Diamond Layer on Residual Stresses in Polycrystalline Diamond Compact
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Guo-Ping XU1, 2, Qi-Wu CHEN2, Zhi-Min YIN1, Gen XU1
Affiliations
  • 1.School of Materials Science & Engineering, Central South University, Changsha 410083, China
  • 2.Changsha Research Institute of Mining and Metallurgy, Changsha 410012, China
Published: 2009-02-15
Outline
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The effect of thickness of diamond layer on the residual stresses in polycrystalline diamond compact (PDC) was investigated through XRD measurement and finite element analysis (FEA) method. The results show that as the thickness of the diamond layer increases from 0.5 mm to 2.0 mm, the residual compressive stress on the surface of the diamond layer at the center decreases from 1 800 MPa to about 700 MPa, but the stress on the edge changes gradually from compression into tension, and the tensile stress region on the edge of the diamond layer becomes wider. At the same time, the vertical tensile stress on outer edge of the cutter and shear stress near the interface increase significantly. These two stresses are the main factors that cause cracks near the interface of the PDC with a thicker diamond layer. Based on the measured results, the equations of the stresses at the centers and on the edges of the PDC as a function of the thicknesses of diamond layers have been deduced.

diamond thickness  /  polycrystalline diamond compact (PDC)  /  residual stress
徐国平, 陈启武, 尹志民, 徐根. 金刚石层厚度对复合片（PDC）残余应力的影响. 高压物理学报, 2009 , 23 (1) : 24 -30 .
Guo-Ping XU, Qi-Wu CHEN, Zhi-Min YIN, Gen XU. The Effect of Thickness of Diamond Layer on Residual Stresses in Polycrystalline Diamond Compact[J]. Chinese Journal of High Pressure Physics, 2009 , 23 (1) : 24 -30 .
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Year 2009 volume 23 Issue 1
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Article Info
  • Receive Date：2008-03-12
  • Online Date：2026-10-30
  • Published：2009-02-15
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History
  • Received：2008-03-12
  • Revised：2008-07-28
Funding
Affiliations
    1.School of Materials Science & Engineering, Central South University, Changsha 410083, China
    2.Changsha Research Institute of Mining and Metallurgy, Changsha 410012, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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