To provide a thermal spray membrane contact material, contact member and
contact part and an apparatus to which they are applied, showing
excellent seizure resistance and wear resistance even under high surface
pressure/low speed sliding, high speed/high temperature sliding, or high
surface pressure/high speed sliding. In a bucket connecting apparatus
connecting an arm and a bucket by a work implement connecting pin, the
above-mentioned work implement connecting pin comprises a base material
made of steel having an axis function and a contact surface formed of a
thermal spray membrane contact material film-formed on the base material,
said contact surface being placed at least on a supported surface site of
the work implement connecting pin relative to a bracket and on a slipping
contact surface with a work implement bushing, further, said thermal
spray membrane contact material being composed of a Mo metal phase, or 10
vol % or more of a Mo metal phase and a metal phase and/or alloy phase
containing one or more elements selected from the group consisting of Fe,
Ni, Co, Cr, Cu and Zn.