SLIDING MEMBER

Provided is a sliding member that can exhibit an anti-wear effect brought about by Si particles. The present invention is a sliding member including 7.0 to 13.0mass% inclusive of Sn, 6.5 to 12.0 mass%inclusive of Si, 0.5 to 3.0mass% inclusive of Cu, and unavoidable impurities, wherein the remainder includes an aluminum alloy layer formed from Al. Si particles are dispersed in the aluminum alloy layer. The Vickers hardness of the matrix is 40 to 60HV inclusive. The load resistance value, which is the product of multiplying the Vickers hardness of the matrix and the volume concentration and average surface area of the Si particles, is 0.00001 to 0.00029N inclusive. 本发明提供能够发挥基于Si颗粒的耐磨损性效果的滑动构件。该滑动构件包含铝合金层，所述铝合金层包含7.0质量％以上且13.0质量％以下的Sn、6.5质量％以上且12.0质量％以下的Si、0.5质量％以上且3.0质量％以下的Cu、以及不可避免的杂质，且其余部分由Al构成，其中，所述铝合金层中分散有Si颗粒，所述铝合金层的基质的维氏硬度为40HV以上且60HV以下，所述Si颗粒的体积浓度和平均面积与所述基质的维氏硬度之积、即负载阻力值为0.00001N以上且0.00029N以下。