…In particular, on the surface, slip bands are formed due to repeated loading, and localized unevenness can be observed. These slip bands penetrate deep into the material from the surface and are called persistent slip bands (PSBs). These concave and convex parts on the surface of the material are called intrusions and extrusions, respectively, and these uneven parts are often the site of fatigue crack initiation because higher stress is concentrated in them than in other parts. … *Some of the terminology that refers to "persistent slip band" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…とくに,表面部には,繰返し荷重によって発生したすべり帯が形成されており,局所的に凹凸が観察される。このすべり帯は,表面から材料内部まで深く侵入しており,固執すべり帯persistent slip band(略称PSB)と呼ばれている。また,材料表面部のこれらの凹部,凸部は,おのおの入りこみintrusion,突出しextrusionと呼ばれ,これらの凹凸部に,他の部分よりも高い応力が集中して,疲労亀裂の発生位置となる場合が多い。… ※「persistent slip band」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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