小特集「仙台シンポジウム」
ビッカース硬さ100年
2024 年 69 巻 3 号 p. 12-15
詳細
2024 年 69 巻 3 号 p. 12-15
The origin of Vickers hardness test was reviewed and identified. A survey of early patents and academic papers indicated that the prototype Vickers hardness tester was inventedin 1921 and the Vickers hardness test method was established in 1924. The origin of Vickers hardness test was reviewed and identified. A survey of early patents and academic papers indicated that the prototype Vickers hardness tester was inventedin 1921 and the Vickers hardness test method was established in 1924.
