SLIDING BEARING

摘要

PROBLEM TO BE SOLVED: To provide a Bi system material furnished with fatigue resistance and conformability required as an overlay for a sliding bearing of an internal combustion engine. SOLUTION: Relative X-ray diffraction intensity I[hkl], that is, I[hkl]=K(hkl)/ K(012) of a ratio K(hkl) of X-ray diffraction intensity on a hkl} plane against a ratio K(012) of X-ray diffraction intensity on a 012} surface satisfies conditions (a) and (b) by expressing a ratio of X-ray diffraction intensity Ro/t(hkl) of a hkl} surface of Bi crystal constituting an overlay layer to X-ray diffraction intensity Rp(hkl) of the hkl} surface of the Bi crystal constituting a powder standard sample to be random orientation as K(hkl)=Ro/t(hkl)/Rp(hkl). (a) 0.2I[012]<=I[hkl]<=5I[012]. (b) a plane hkl} to satisfy 0.5I[012]<=I[hkl]<=2I[hkl] exists in more than three orientations.