TY - JOUR
T1 - Proposal of strength evaluation method in casting material with defect
T2 - Using si-added noncombustible mg alloy
AU - Hamada, Shigeru
AU - Hayashi, Komei
AU - Matsumoto, Toshiharu
AU - Sakamoto, Michiru
AU - Noguchi, Hiroshi
PY - 2009/10
Y1 - 2009/10
N2 - In order to evaluate a casting material which has scatter tensile strength, a strength evaluation method was proposed. Tensile tests were carried out by specimen with a particular artificial defect as a fracture origin. The size of the fracture origin could be controlled using the proposed evaluation method. Therefore the tensile test results which have a little scatter were obtained. However shape of the artificial defect is different from one of casting defect and the effects of each defect on the tensile strength might be different. Then both of the stress intensity factors at the beginning of unstable fracture were compared, it was clarified that the artifical defect and the casting defect have the same effect on the tensile strength. By this method, a Si-added noncombustible Mg alloy which has large casting defects could be evaluated. It was clarified that there is no difference of tensile strength between 1% and 2% Si-added noncombustible Mg alloy, and it is obtained that the relationship between tensile strength and temperature.
AB - In order to evaluate a casting material which has scatter tensile strength, a strength evaluation method was proposed. Tensile tests were carried out by specimen with a particular artificial defect as a fracture origin. The size of the fracture origin could be controlled using the proposed evaluation method. Therefore the tensile test results which have a little scatter were obtained. However shape of the artificial defect is different from one of casting defect and the effects of each defect on the tensile strength might be different. Then both of the stress intensity factors at the beginning of unstable fracture were compared, it was clarified that the artifical defect and the casting defect have the same effect on the tensile strength. By this method, a Si-added noncombustible Mg alloy which has large casting defects could be evaluated. It was clarified that there is no difference of tensile strength between 1% and 2% Si-added noncombustible Mg alloy, and it is obtained that the relationship between tensile strength and temperature.
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U2 - 10.1299/kikaia.75.1326
DO - 10.1299/kikaia.75.1326
M3 - Article
AN - SCOPUS:73949097816
SN - 0387-5008
VL - 75
SP - 1326
EP - 1333
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
IS - 758
ER -