超硬合金球および鋼球圧子について

概要

論文の詳細を見る
Usually steel balls are used as indenters in Brinell hardness test and also in Rockwell hardness test. In Japan, tungsten carbide balls have been recently made in such size that we could use them as indenters in ordinary tests. In the present research, these balls were used to measure the hardness of hard metals and their permanent deformation was observed to determine the maximum hardness number which we could measure with such balls without their permanent deformation, and also the difference between hardness values of the same metals was measured with balls of different materials to determine the new conversion table of hardness. This table was compared with the already issued one such as ASTM table, and then the disagreement between them was discussed.
一般社団法人日本機械学会の論文
1958-07-25