Thermal effects on tribological behaviors of polycrystalline cubic boron nitride
Thermal effects on tribological behaviors of polycrystalline cubic boron nitride
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热效应对多晶立方氮化硼摩擦学行为的影响
DOI：
10.1016/j.ceramint.2020.11.065
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发表时间：
2020-11
影响因子：
5.2
通讯作者：
Chengbiao Wang
中科院分区：
文献类型：
--
作者：
Dezhong Meng;Yuanpei Zhao;Wen Yue;Zhe Wu;Jinmeng Cui;Wenbo Qin;Chengbiao Wang
为了解多晶立方氮化硼（PcBN）在高温下的热损伤机制及其对摩擦学性能的影响，采用X射线衍射、扫描电镜和能谱分析等方法研究了不同温度下退火后PcBN的物理化学特性。此外，还评估了退火PcBN与典型商用AISI 52100钢球滑动的摩擦学行为。结果表明，在800 °C以上，TiN和TiB2粘结相生成了新的氧化相TiO2，由于气体扩散通道的作用，新的氧化相TiO2呈现出均匀的纳米棒状晶须。摩擦系数随退火温度的变化趋势与反球磨损量的变化趋势一致，在800 °C时摩擦系数和磨损量均达到最低点。在800 °C以下，磨损机制是由于铁转移膜的形成而产生的粘着磨损，而在900 °C下，磨损机制是由于作为三体硬质相的晶粒剥落而产生的磨粒磨损。
In order to understand the thermal damage mechanisms of polycrystalline cubic boron nitride (PcBN) under elevated temperature and the following influences on its tribological behaviors, the physicochemical characteristic of annealed PcBN under various temperatures was investigated by X-ray diffraction, Scanning electron microscopy and energy dispersive x-ray spectroscopy measurements. Furthermore, the tribological behaviors of annealed PcBN sliding against the typical commercial AISI 52100 steel ball were evaluated. These results demonstrate that the new oxidation phase TiO2, which exhibits uniform whisker with nanorod shape owing to the effect of gas diffusion channels, is produced from the binder phases TiN and TiB2above 800 °C. Moreover, the coefficient of friction (CoF) dependent on annealed temperatures is coincident with the changing tendency of wear volume of counter balls, where the CoF and wear volume bottomed at 800 °C. Below 800 °C, the wear mechanism is adhesive wear owing to the formation of the iron transfer film, while at 900 °C is abrasive wear because of the spalling off of grains acting as the three-body hard phases.
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影响因子：
5.4
作者：
Zhiming Yu;K. Inagawa;Zhuji Jin
通讯作者：
Zhiming Yu;K. Inagawa;Zhuji Jin
影响因子：
2.9
作者：
Chen, HY;Lu, FH
通讯作者：
Lu, FH
影响因子：
4.1
作者：
I. Bello;Y. M. Chong;K. Leung;C. Chan;K. Ma;Wenjun Zhang;Shui-Tong Lee;A. Layyous
通讯作者：
I. Bello;Y. M. Chong;K. Leung;C. Chan;K. Ma;Wenjun Zhang;Shui-Tong Lee;A. Layyous
影响因子：
4.6
作者：
Rahman AT;Frangeskou AC;Kim MS;Bose S;Morley GW;Barker PF
通讯作者：
Barker PF
DOI：
10.1016/j.ijmachtools.2017.03.003
发表时间：
2017-10
影响因子：
14
作者：
Lei Chen;Bruce L. Tai;R. Chaudhari;Xiaozhong Song;A. Shih
通讯作者：
Lei Chen;Bruce L. Tai;R. Chaudhari;Xiaozhong Song;A. Shih