Friction and wear properties of alpha-FeSi_2-Si alloy, ReSi_<1.8> and MoSi_2 in ethyl alcohol
Friction and wear properties of alpha-FeSi_2-Si alloy, ReSi_<1.8> and MoSi_2 in ethyl alcohol
复制标题
α-FeSi_2-Si合金、ReSi_<1.8>和MoSi_2在乙醇中的摩擦磨损性能
DOI：
10.1016/j.triboint.2013.09.002
复制
发表时间：
2014
影响因子：
6.2
通讯作者：
H. Inui
中科院分区：
文献类型：
--
作者：
T. Murakami;H. Mano;Y. Hibi;K. Matsuzaki;H. Inui
本研究采用放电等离子烧结法制备了Fe-X at% Si合金（X=70.5、80.0和96.0）、Re-64.3 at% Si和Mo-66.7 at% Si圆盘试样，并研究了它们在乙醇中与Si 3 N4球试样滑动时的摩擦磨损性能。对硅锭的摩擦磨损性能进行了研究。Fe-70.5at%Si、Fe-80.0at%Si、Fe-96.0at%Si和Re-64.3at%Si盘试样表现出低至0.15的摩擦系数。认为Fe-70.5at%Si、Fe-80.5at%Si和Fe-96.0at%Si圆盘试样的低摩擦是由于在圆盘试样和成对球试样的磨损表面上形成了低摩擦的硅醇盐和聚氧硅烷。Re-64.3at%Si圆盘试样在本研究中制备的所有圆盘试样中表现出最高的显微维氏硬度。此外，Fe-X at% Si（X=70.5，80.0，96.0和100）圆盘试样的显微硬度随Si含量的增加而增加。此外，通过烧结退火和粉碎的Fe-90.0 at % Si粉末难以获得致密的Fe-90.0 at % Si圆盘试样。而在1403 K下烧结Fe-96.0 at % Si粉末可获得致密的Fe-96.0 at % Si圆盘试样。
In this study, Fe–X at% Si alloy (X=70.5, 80.0 and 96.0), Re–64.3 at% Si and Mo–66.7 at% Si disk specimens were prepared by spark plasma sintering, and their friction and wear properties were investigated when they were slid against Si3N4ball specimens in ethyl alcohol. The friction and wear properties of Si ingots were also examined. Fe–70.5 at% Si, Fe–80.0 at% Si, Fe–96.0 at% Si and Re–64.3 at% Si disk specimens exhibited friction coefficients as low as 0.15. It is considered that the low friction of the Fe–70.5 at% Si, Fe–80.5 at% Si and Fe–96.0 at% Si disk specimens was due to the formation of low friction silicon alkoxide and polyoxysilane on the worn surfaces of the disk specimens and the paired ball specimens. Re–64.3 at% Si disk specimens exhibited the highest microvickers hardness of all the disk specimens prepared in this study. In addition, the microvickers hardness of the Fe–X at% Si (X=70.5, 80.0, 96.0 and 100) disk specimen increased with increasing the Si content. Moreover, it was difficult to obtain dense Fe–90.0 at% Si disk specimens by sintering the annealed and crushed Fe–90.0 at% Si powder. However, dense Fe–96.0 at% Si disk specimens could be obtained by sintering the Fe–90.0 at% Si powder at 1403 K.