Experimental investigation for fatigue strength of a cast aluminium alloy
Source abstract
Abstract
Abstract Fatigue strength of a type A319 cast aluminium alloy was studied by means of fully reversible tension–compression tests conducted at room temperature and at 130 °C; the specimens used in this study came from samples cut from the bulkheads of V-8 type engine blocks. Testing was carried out in a servohydraulic machine following staircase schedules. The specimens were tested to fracture or up to 10 7 cycles. Analyses of the fatigue tests yield to a strength of 99.4 and 90.3 MPa at 10 7 cycles for the tests at room temperature and at 130 °C. The size and nature of the defects that originated the failure were determined by scanning electron microscopy. It was found that fatigue cracks originated in pores; single cracks were observed to occur in samples tested below a nominal reversible stress of 120 MPa; multiple cracks were observed in samples stressed above this value.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Aluminum Alloy Microstructure Properties · High Temperature Alloys and Creep
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
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