发明名称 |
BRAZE JOINTS WITH A DISPERSED PARTICULATE MICROSTRUCTURE |
摘要 |
The microstructure of braze joints in polycrystalline diamond compact (PDC) cutters may be tailored to increase the shear strength of the braze joint, for example, by increasing the amount of a dispersed particulate microstructure therein. A method for forming a dispersed particulate microstructure may include brazing a polycrystalline diamond table to a hard composite substrate with a braze alloy at a braze temperature between 5°C above a solidus temperature of the braze alloy and 200°C above a liquidus temperature of the braze alloy; and forming a braze joint between the polycrystalline diamond table and the hard composite substrate that comprises at least 40% by volume of the dispersed particulate microstructure composed of a particulate inter-metallic phase having a diameter of 0.5 µm to 2.0 µm and an aspect ratio of 1 to 5 dispersed in a ductile matrix. |
申请公布号 |
WO2016209241(A1) |
申请公布日期 |
2016.12.29 |
申请号 |
WO2015US37749 |
申请日期 |
2015.06.25 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
SAINI, Gagan;ATKINS, William Brian |
分类号 |
E21B10/42;E21B10/54;E21B10/62 |
主分类号 |
E21B10/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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