… In contrast to ductility, when an object such as a metal material breaks with little or no plastic deformation, it is said to be brittle. The term brittleness is used to describe this property. Brittleness is not measured by the elongation rate or area reduction rate mentioned above, so it is measured by impact testing in comparison with other materials. … *Some terminology explanations that mention "brittleness" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 延性とは逆に金属材料などの物体がほとんどあるいはまったく塑性変形しないで破壊した場合には〈もろい〉という。この性質に対する言葉として脆性(ぜいせい)brittleness(もろさ)が用いられる。脆性は,前述のような伸び率,断面収縮率だけでは不十分なので,衝撃試験により他の材料と比較測定される。… ※「brittleness」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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