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The relation between the tensile strength and the hardness of metals (1930)
NASA Technical Reports Server (NTRS) · leaf 19
N.A.CA. Technical tfemorandura Ivo.552 Figs.7 & 8 … 0 10 20 30 40 50 60 70 80 90 Amount of rolling^ Rolled, ' pest 68 50 Pig.7 Increase in hardness and strength /Rolled nicke Steele of copper with amount of rolling. 40 1 i®30 20 Rolled "I i 10 _1L 1 5 10 20 30- 40 50 G Fig.8 Stress-strain curves of different metals.NASA Technical Reports Server (NTRS)
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