Lewis A J
Aust Dent J. 1975 Aug;20(4):221-7. doi: 10.1111/j.1834-7819.1975.tb05051.x.
Three series of tensile test pieces were produced using a nickel base partial denture casting alloy. For the first series induction heating was employed, for the second a resistance crucible, and for the third an oxy-acetylene torch. All specimens were radiographed and a classification developed to indicate the radiographic soundness of each specimen. Radiographic soundness was subsequently related to the results obtained from mechanical testing.
使用镍基局部义齿铸造合金制作了三组拉伸试件。第一组采用感应加热，第二组使用电阻坩埚，第三组使用氧乙炔焊炬。对所有试样进行了射线照相，并制定了一种分类方法来表明每个试样的射线照相完好程度。随后将射线照相完好程度与力学测试结果联系起来。
