Experimental results of the lubricating behaviour of Pb-Sn alloy films formed by ion-plating on brass substrates are given. It is shown that the film microhardness, friction coefficient and wear life per thickness are...Experimental results of the lubricating behaviour of Pb-Sn alloy films formed by ion-plating on brass substrates are given. It is shown that the film microhardness, friction coefficient and wear life per thickness are under the influence of the substrate. The wear failure of film appears to be film adhesion and transferring by the mating surface.展开更多
The Ti(C,N)multi-component coatings are deposited on the HSS steel(W18Cr4V)substrates by muti-arc ion-plating with variationg of reactive gas flow ratio r=C2H2/N2,and the coatings are tested and analysed by XPS,XRD,SE...The Ti(C,N)multi-component coatings are deposited on the HSS steel(W18Cr4V)substrates by muti-arc ion-plating with variationg of reactive gas flow ratio r=C2H2/N2,and the coatings are tested and analysed by XPS,XRD,SEMtechniques,The results show that the Ti(C,N)coating exhibits a very strong(111)preferred orientation when the value ofr is very low.The(111)peak de-creases and(220)peak increases with the increasing of r while the coating becomes more dense.The film shows typical face-centered cubic structure.The componens of the film is Ti(C,N),but there is litle graphite component in the coating.展开更多
A new phase was found at the interface between Al film and Ni substrate when the time of ion-plating reaches 5 min.It was identified to be body centered tetragonal lattice with the constants a=b=0.588 nm,c=0.480 nm.Th...A new phase was found at the interface between Al film and Ni substrate when the time of ion-plating reaches 5 min.It was identified to be body centered tetragonal lattice with the constants a=b=0.588 nm,c=0.480 nm.The variation of microstructure and phases with the ion-plating time were observed.Based on these results,the ion-plating film formation mech- anism has been also discussed.展开更多
The composite coating of(N^++IP)-TiN was prepared by ion-plated TiN film onto ion-nitrided case on the low carbon steel substrate.The microhardness measurement along in- terface between IP-TiN coating and substrate wa...The composite coating of(N^++IP)-TiN was prepared by ion-plated TiN film onto ion-nitrided case on the low carbon steel substrate.The microhardness measurement along in- terface between IP-TiN coating and substrate was detected as a moderate decrease in magni- tude with increase of distance from the coating surface.This seems due to the occurrence of ion nitride case,ε-Fe_3N-Fe_2N and Fe_4N phases,along the interface.展开更多
文摘Experimental results of the lubricating behaviour of Pb-Sn alloy films formed by ion-plating on brass substrates are given. It is shown that the film microhardness, friction coefficient and wear life per thickness are under the influence of the substrate. The wear failure of film appears to be film adhesion and transferring by the mating surface.
文摘The Ti(C,N)multi-component coatings are deposited on the HSS steel(W18Cr4V)substrates by muti-arc ion-plating with variationg of reactive gas flow ratio r=C2H2/N2,and the coatings are tested and analysed by XPS,XRD,SEMtechniques,The results show that the Ti(C,N)coating exhibits a very strong(111)preferred orientation when the value ofr is very low.The(111)peak de-creases and(220)peak increases with the increasing of r while the coating becomes more dense.The film shows typical face-centered cubic structure.The componens of the film is Ti(C,N),but there is litle graphite component in the coating.
文摘A new phase was found at the interface between Al film and Ni substrate when the time of ion-plating reaches 5 min.It was identified to be body centered tetragonal lattice with the constants a=b=0.588 nm,c=0.480 nm.The variation of microstructure and phases with the ion-plating time were observed.Based on these results,the ion-plating film formation mech- anism has been also discussed.
文摘The composite coating of(N^++IP)-TiN was prepared by ion-plated TiN film onto ion-nitrided case on the low carbon steel substrate.The microhardness measurement along in- terface between IP-TiN coating and substrate was detected as a moderate decrease in magni- tude with increase of distance from the coating surface.This seems due to the occurrence of ion nitride case,ε-Fe_3N-Fe_2N and Fe_4N phases,along the interface.
