Effect of Pouring Temperature on the Hardness and Wear Resistance of Bronze CuPb10Sn8Zn2

In the production of engineering parts by casting method, the pouring temperature is an important variable. In this research, the effect of the pouring temperature on the two important characteristics, including the hardness and wear resistance of bronze bearing CuPb10Sn8Zn2 is studied. For this purpose, the melt is produced in a transistor induction furnace and, in the end, the microstructure (by using scanning electron microscope), hardness test (by using Brinell test device) and wear resistance (by using pin-on-disc at 440m and 10N force) of the bronze of CuPb10Sn8Zn2 bearings are compared in sandy mold at pouring temperatures of 950C and 1200C. The results indicated that at high pouring temperatures (1200C); the wear resistance is almost doubled, because the contents of intermetallic compound and solid solution were more and the content of lead was less.

Microstructure; Bearing; Pouring; Casting