公开(公告)号：US20210404413A1

公开(公告)日：2021-12-30

申请号：US17290081

申请日：2018-11-02

申请人： NISSAN MOTOR CO., LTD. ,  RENAULT S.A.S.

发明人： Tsuyoshi HIGUCHI ,  Akinobu ITOU ,  Hayato HIRAYAMA

IPC分类号： F02F3/10 ,  C23C4/08 ,  C23C4/131 ,  F02F3/00 ,  F16J1/01

摘要： A sprayed coating for a sliding member of the present invention includes a ferrous alloy containing chromium (Cr).
The sprayed coating for the sliding member has the content rate of the chromium of 8 mass % or more, includes a structure that comprises crystal grains contained in the sprayed coating and having an average grain size of 3 μm or less, has a Vickers hardness of 300 Hv or more, and then is excellent at abrasion resistance.

公开(公告)号：US20210404044A1

公开(公告)日：2021-12-30

申请号：US17289869

申请日：2018-11-02

申请人： NISSAN MOTOR CO., LTD.

发明人： Tsuyoshi HIGUCHI ,  Hayato HIRAYAMA ,  Akinobu ITOU

IPC分类号： C23C4/073 ,  C23C4/16

摘要： A sprayed coating for a sliding member of the present invention includes a ferrous alloy containing iron (Fe) as a major ingredient.
The sprayed coating for the sliding member containing 10 mass % or more and 20 mass % or less of chromium (Cr), and 0.1 mass % or more and 0.5 mass % or less of silicon (Si) and having the content rate of an oxide in the sprayed coating of 1 area % or less has corrosion resistance with improved seizure resistance.

公开(公告)号：US20210293158A1

公开(公告)日：2021-09-23

申请号：US17260308

申请日：2018-07-19

申请人： NISSAN MOTOR CO., LTD.

发明人： Yoshinori IZAWA ,  Yutaka MABUCHI ,  Akinobu ITOU ,  Junichi ARAI ,  Misao MOGAMI ,  Masanao HARADA ,  Moriyuki NOGAMI

IPC分类号： F01L3/04 ,  C23C24/08

摘要： A sliding member of the present invention includes a coating on a base material. The coating contains hard metal particles and corrosion-resistant metal particles that have hardness lower than that of the hard metal particles. The hard metal particles contain particles that have at least Vickers hardness of 600 Hv or higher. The corrosion-resistant metal particles are made of at least one kind of metal selected from the group consisting of copper (Cu), cobalt (Co), chromium (Cr), and nickel (Ni), or are made of an alloy containing said metal. The coating has a cross section in which the hard metal particles are dispersed in an island manner in a particle aggregate of the corrosion-resistant metal particles and in which an area ratio of the corrosion-resistant metal particles is 30% or larger. Thus, corrosion of the hard metal particles in the coating is prevented, whereby the sliding member maintains wear resistance for a long time.