超軽量金属MHS成形体の疲労強度特性の評価(S14-3 軽金属・軽量金属・細線の疲労,S14 金属材料の疲労特性と破壊機構)

概要

論文の詳細を見る
The metal hollow sphere (MHS) is expected as a super-light weight metal for lightening the vehicle. The strength properties of sintered MHS were evaluated through the tensile test and tensile fatigue test. The small ball connected area and unconnected area were clearly observed in the fracture surface observation. The number of the connected ball and the number of the unconnected ball were counted in the fracture surface of all the test pieces. Then, a small ball connected rate was decided from the number. It was known that the strength of the test piece having high small ball connected rate was higher. And, the stress analysis of the part which smalll balls connect was done. It was shown that the strength of the sintered MHS could be explained from local stress concentration.
一般社団法人日本機械学会の論文
2004-09-04