eng Ansari Education and Research Society Journal of Ultra Chemistry 0973-3450 2319-8036 June 2008 4 1 39 42 juc 757 article J.B. Shamsul 1 A.Z. Nur Hidayah 2 C. M. Ruzaidi 2 School of Materials Engineering, Universiti Malaysia Perlis Komplacks pusat Pengajjan 2, Taman Muhibbah, Hejawi, 02600 Areu, Perlis (Malaysia) <p style="text-align: justify;">Cobalt-chromium-HAP (hyroxyapatite) biomaterial system was developed by powder metallurgy technique. Composition of 0 wt. %, 5 wt. %, 10 wt. %, 15 wt. % and 20 wt. % of HAP was blended with cobalt-chromium alloy. The method in fabrication of the samples consists of mixing, blending, pressing and sintering of the samples. The results showed that the most stable sample with less corrosion effect was the Co-Cr alloys without HAP. In general, the corrosion rate growths relatively with the times. In addition, the effect of adding HAP made the samples getting worse, which help the corrosion to grow in the biomaterial system developed.</p> https://journalofchemistry.org/paper/757/ Cobalt-Chromium corrosion test