Strandman E
Odontol Revy. 1976;27(4):273-86.
By varying the amount of acetylen in acetylene-oxygen flames Co-Cr test pieces with a varying carbon content were produced. The hardness, yield point for 0.05 per cent, 0.1 per cent and 0.2 per cent tensile strength and elongation were determined for these test-pieces. The results showed that hardness, yield points and tensile strength increased with increased carbon content, whereas the elongation lessened. The clinical importance of the altered mechanical properties due to increased carbon content in the Co-Cr alloy under study was discussed.
通过改变乙炔-氧气火焰中乙炔的含量，制备了碳含量不同的钴铬试件。测定了这些试件的硬度、0.05%、0.1%和0.2%屈服点时的抗拉强度以及伸长率。结果表明，硬度、屈服点和抗拉强度随碳含量的增加而增加，而伸长率则降低。文中讨论了所研究的钴铬合金中碳含量增加导致机械性能改变的临床意义。
