| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Research Abstract |
To elucidate the fracture mechanism by the corrosion-fatigue interaction, we developed a new electrochemical/mechanical multi-physics measurement system to evaluate the corrosion electrical field and stress/strain fields in the fracture. The high-pressure die cast aluminum alloy in saline solution of room temperature was investigated. The polarization property under constant tensile stresses was measured, and the in situ observation of low-cycle corrosion fatigue was conducted. We found from the experiments that the spontaneous potential almost linearly decreased as the tensile stress increased and the galvanic corrosion was facilitated by the tensile stress.
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