…(5) Practical metal materials are polycrystalline bodies made up of tiny crystals. For this reason, cracks are classified into two types: grain boundary cracks, which progress along the grain boundaries, and transgranular cracks, which penetrate the grains. Transgranular cracks can also be accompanied by severe branching. … *Some of the terminology that refers to "transgranular cracking" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…(5)実用金属材料は微小な結晶の集合した多結晶体と呼ばれるものである。このため割れの形態としては,結晶粒界に沿って割れの進行する粒界割れと,結晶粒内部に割れが貫通する粒内割れ(貫粒割れ)の二つに区別される。粒内割れでは激しい分岐を伴う場合もある。… ※「貫粒割れ」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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