Posted by Ron Laden on 01/04/2022 07:57:08:
Would aluminium bronze be a good conrod material I think it is known for being a strong alloy..?
With my recently refreshed knowledge of the aluminium alloy properties, I offer the following:
Generic data on aluminium bronze seems to suggest that the yield strength is of the order of 250 MPa.
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6082 T6 yield strength is ~240 MPa in sheet form and up to 270 MPa in bar form (depending on size).
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2014 T6 sheet has a yield strength of ~380 MPa and bar in the T651 condition >420 MPa
Note that 2014 in the T4 condition is back at ~250MPa
(Source)
Obiously this is generic data for the aluminium bronze, and there may be specific grades with higher strength. However the other down-side of aluminium bronze is its density: circa 7.6 vs ~2.7 for aluminium alloys, so an aluminium bronze conrod would be almost 3 times the weight of an aluminium alloy one which in itself will increase the loading on it (and the rest of the engine!) and probably give rise to balancing / vibration problems.
£0.02p
Edited By Andy_G on 01/04/2022 11:32:01