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材料研究学报  2016, Vol. 30 Issue (10): 753-758    DOI: 10.11901/1005.3093.2015.630
  研究论文 本期目录 | 过刊浏览 |
Al2O3基多尺度颗粒复合陶瓷刀具材料的摩擦磨损性能*
殷増斌(),袁军堂,黄雷,汪振华
南京理工大学机械工程学院 南京 210094
Friction and Wear Properties of Al2O3-based Micro-nano-composite Ceramic Tool Materials
Zengbin YIN(),Juntang YUAN,Lei HUANG,Zhenhua WANG
School of Mechanical Engineering, NanjingUniversity of Science and Technology, Nanjing 210094, China
引用本文:

殷増斌,袁军堂,黄雷,汪振华. Al2O3基多尺度颗粒复合陶瓷刀具材料的摩擦磨损性能*[J]. 材料研究学报, 2016, 30(10): 753-758.
Zengbin YIN, Juntang YUAN, Lei HUANG, Zhenhua WANG. Friction and Wear Properties of Al2O3-based Micro-nano-composite Ceramic Tool Materials[J]. Chinese Journal of Materials Research, 2016, 30(10): 753-758.

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摘要: 

研究了两种Al2O3基多尺度颗粒复合陶瓷刀具材料与奥氏体不锈钢1Cr18Ni9Ti配副时的摩擦性能和磨损机理。结果表明: 两种陶瓷刀具材料的摩擦系数随着载荷和滑动速度的增加而减小, 磨损率随着载荷和滑动速度的增加而增大。与Al2O3-(W, Ti)Cμ-TiCn陶瓷刀具相比, Al2O3-TiCμ-TiCn陶瓷刀具的耐磨性更好, 更适宜切削奥氏体不锈钢。摩擦高温使Al2O3与不锈钢球发生化学反应生成FeOAl2O3, 使金属转移至陶瓷表面形成金属粘结层, 从而降低了摩擦系数。Al2O3-TiCμ-TiCn陶瓷刀具材料的磨损机理为粘结磨损, Al2O3-(W, Ti)Cμ-TiCn陶瓷刀具材料的磨损机理为粘结磨损和断裂。

关键词 无机非金属材料Al2O3基陶瓷刀具材料摩擦性能磨损机理切削刀具    
Abstract

The friction properties and wear mechanisms of two types of Al2O3-based micro-nano-composite ceramic tool materials were investigated by sliding wear against austenitic stainless steel 1Cr18Ni9Ti. The results indicate that the friction coefficient decreased but the wear rate increased with the increase of load and sliding speedfor the two materials. In comparison with Al2O3-(W, Ti)Cμ-TiCn, the Al2O3-TiCμ-TiCn ceramic tool material exhibited better wear resistance , thus was much suitable for cutting austenitic stainless steel. In the sliding process, the steel reacted with Al2O3to form FeOAl2O3, which made the metal transfer to the ceramic disk, and couldeffectively decreased the friction coefficient. The main wear mechanism of Al2O3-TiCμ-TiCn ceramic tool material is adhesive wear, while adhesion and fracture for the Al2O3-(W, Ti)Cμ-TiCn.

Key wordsinorganic non-metallic materials    Al2O3-based ceramic    friction property    wear mechanism    cutting tool
收稿日期: 2015-12-17     
基金资助:* 国家自然科学基金51505227, 江苏省自然科学基金BK20150783, 中央高校基本科研业务费专项资金30915118809资助项目
Composite Al2O3
(0.5 μm)
TiC
(0.5 μm)
(W,Ti)C
(1.5 μm)
TiC
(40 nm)
Co
(2 μm)
ATTC 56 35 6 3
AWTC 57 33 6 4
表1  Al2O3基多尺度颗粒复合陶瓷刀具材料组分配比
图1  摩擦磨损实验示意图
Materials Elasticity
modulus
(GPa)
Flexural
strength
(MPa)
Fracture
toughness
(MPam1/2)
Hardness Thermal conductivity
(W/(mK))
ATTC 424 916 8.3 18 HRC 9.8
AWTC 463 882 7.2 19 HRC 13
Stainless steel 197 534 189 HBS 16
表2  陶瓷圆盘和不锈钢磨球的性能
图2  不同载荷下的摩擦系数随时间变化情况
图3  不同滑动速度下的摩擦系数随时间变化情况
Speed ATTC AWTC
5 N 15 N 25 N 5 N 15 N 25 N
40 m/min 0.691 0.568 0.557 0.696 0.527 0.519
60 m/min 0.628 0.527 0.514 0.632 0.513 0.507
80 m/min 0.549 0.513 0.510 0.582 0.510 0.500
表3  不同摩擦参数条件下的摩擦系数
图4  ATTC和AWTC磨痕的SEM形貌
图5  AWTC陶瓷在不同载荷下的磨痕SEM形貌
Speed ATTC AWTC
5 N 15 N 25 N 5 N 15 N 25 N
40 m/min 1.694 2.695 6.429 3.454 4.856 7.694
60 m/min 7.854 8.601 10.320 8.620 9.689 11.970
80 m/min 10.591 11.654 18.657 10.471 11.800 20.642
表4  不同摩擦参数条件下的磨损率
图6  ATTC陶瓷刀具材料的磨损形貌以及区域1和区域2的EDS分析
图7  AWTC陶瓷刀具材料磨损形貌
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