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Effect of Temperature on Structure and Performance of PCBN Composites for Automotive Parts Machining
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Guijuan YANG1, Shengcai YANG2, Guanqun WANG3
Mining and Metallurgical Engineering | 2023, 43(2) : 145 - 148
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Mining and Metallurgical Engineering | 2023, 43(2): 145-148
• MATERIALS •
Effect of Temperature on Structure and Performance of PCBN Composites for Automotive Parts Machining
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Guijuan YANG1, Shengcai YANG2, Guanqun WANG3
Affiliations
  • 1.College of Automation Engineering, Tangshan Polytechnic College, Tangshan 063000, Hebei, China
  • 2.College of Materials Science and Engineering, Fuzhou University, Fuzhou 350116, Fujian, China
  • 3.Fujian Key Laboratory of Preparation and Forming Technology for Advanced Materials, Fuzhou 350118, Fujian, China
Published: 2023-04-01 doi: 10.3969/j.issn.0253-6099.2023.02.032
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Polycrystalline Cubic boron nitride (PCBN) composites were synthesized by adding a certain amount of Al and Ti, with TiN as the main binder. The effects of temperature (1 300-1 600 ℃) on the composition, microstructure and mechanical properties of the PCBN composites sintered with TiN-Al-Ti in combination with CBN were investigated. It is found that the phases of PCBN specimen are mainly composed of BN, TiB2, TiN and AlN, and almost all Ti reacts with CBN in the sintering process to form TiN and TiB2 phases. The relative density, flexural strength and hardness of PCBN are generally trending up with the rising of sintering temperature. And composite material with good comprehensive performance can be obtained at a sintering temperature of 1 500 ℃, showing its relative density of 99.1%, flexural strength of 807.8 MPa, fracture toughness of 6.2 MPa·m1/2, and micro-hardness of 3 233HV.

super-hard material  /  CBN  /  PCBN  /  sintering  /  binder  /  TiN  /  BN  /  TiB2  /  cutting
Guijuan YANG, Shengcai YANG, Guanqun WANG. Effect of Temperature on Structure and Performance of PCBN Composites for Automotive Parts Machining[J]. Mining and Metallurgical Engineering, 2023 , 43 (2) : 145 -148 . DOI: 10.3969/j.issn.0253-6099.2023.02.032
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Year 2023 volume 43 Issue 2
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doi: 10.3969/j.issn.0253-6099.2023.02.032
  • Receive Date：2022-11-02
  • Online Date：2026-03-05
  • Published：2023-04-01
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  • Received：2022-11-02
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Affiliations
    1.College of Automation Engineering, Tangshan Polytechnic College, Tangshan 063000, Hebei, China
    2.College of Materials Science and Engineering, Fuzhou University, Fuzhou 350116, Fujian, China
    3.Fujian Key Laboratory of Preparation and Forming Technology for Advanced Materials, Fuzhou 350118, Fujian, China
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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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