malleability

Japanese: malleability
malleability

…In general, ductility is not a quantitative term, but rather a measure of the strain required to cause fracture. In other words, among the properties of an object that can be plastically deformed without fracture, ductility focuses on the deformation caused by tensile stress, while malleability is used to describe the property of being spread into a plate or foil shape by compressive stress. Therefore, although there is essentially no difference between the two in the sense of the property of being able to undergo plastic deformation, they are used differently depending on the deformation pattern. …

*Some of the terminology explanations that mention "malleability" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…一般には,延性とは定量的な言葉ではなく,破壊を生じさせるのに要するひずみの目安である。すなわち,物体が破壊することなく塑性的に変形しうる性質のうち,引張応力による変形に注目したものが延性であり,圧縮応力によって板状,あるいは箔状に広げられる性質に対する言葉として展性malleabilityが用いられる。それゆえ,この両者は塑性変形しうる性質という意味で本質的にはなんら相違はないが,変形様式の違いに注目して使い分けられている。…

※「malleability」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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