Strength of Torsional Pre-Strained Specimen of Aluminum and Observation of Fatigue Fractured Surface

Autor:	Masaki Fujikawa, Daisaku Shinohara, Kazuo Kuniyoshi, Ryouji Kondou, Chobin Makabe
Rok vydání:	2011
Předmět:	Materials science Mechanical Engineering chemistry.chemical_element Torsion (mechanics) Condensed Matter Physics Fatigue limit Hardness chemistry Mechanics of Materials Aluminium Ultimate tensile strength General Materials Science Surface layer Composite material Compact tension specimen
Zdroj:	Journal of the Society of Materials Science, Japan. 60:217-223
ISSN:	1880-7488 0514-5163
DOI:	10.2472/jsms.60.217
Popis:	The strength of torsional pre-strained specimen of aluminum was investigated. After torsion, the hardness of the specimen varied from surface layer to center section in cross sectional area. The tensile strength and fatigue limit were improved after application of the pre-strain, and these were related to the surface hardness. The fracture surfaces of fatigued specimens were different depending on the pre-strained level. Also, the application of the pre-strain affected on the crack growth direction and the detailed crack growth modes.
Databáze:	OpenAIRE
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