I am curious if it is possible to maximize the strength from Titanium and the light weight of Aluminum to create an alloyMultiple reasons being titanium on it's own is strong, however aluminum is considerably lighter Another reason for the basis of this question is cost, bulk amounts of titanium is expensive while the cost of aluminum isn'tin addition titanium is also harder to work with, not many places are able to shape titanium without increasing cost of courseAnd lastly repair work in the event something requires upkeep like all good things need, aluminum is harder to repair and if it able to be easily repairable in a similar fashion like titanium or steelThank you to all who answer in advance.
meant to survive, teleports is to get to somewhere faster or escape to the deacon room
Aluminum is by far the most common alloying element in Titanium alloysHowever it's nearly always between 5% to 10% AlThis is not enough to really impact the cost or density of the TiAbove about 6% Al, and you begin to form microscopic crystals of the brittle and fairly weak intermetallic compound Ti3Al (aka titanium aluminide) as the metal coolsAbove 13% Al by weight, and at room temp the alloy is predominantly Ti3Al, and is thus so brittle it's completely uselessHowever adding below 10% both increases the strength and heat resistance of TiOn the opposite side, adding a certain amount of Ti to aluminum will increase it's strength, but this can be done by adding vastly cheaper elements like magnesium, silicon, zinc, copper, or lithiumMany aluminum alloys, notably the aluminum-zinc and aluminum-lithium alloys, actually have a strength-to-density ratio that's better than titanium by a fair marginThe main drawback of aluminum compared to Ti is aluminum's poor temperature resistanceAluminum starts to soften and weaken at temperatures above maybe 300 degCelsiusThe other drawback is aluminum is especially prone to metal fatigue from vibration loadsIn the case of aircraft, this means that airframes only have a limited service lifetime after which serious crack problems become more and more likely In aircraft, Titanium is commonly used for turbofan blades and compressor blades in jet engines(which operate at moderate elevated temperatures.) It's also commonly used for bulky hard-duty parts like landing gear and bearing supports for flapsIt may also be used as a direct substitute in fatigue prone areas of the fuselageAluminum is EASIER to repair than steel or because it's fairly soft and easy to workYou can use saws and drills deigned for wood to cut AlSome difficulty comes in welding it, that requires special equipment, but it's FAR easier to weld than TiWorking with Ti alloys is a technical NIGHTMARE, this include even simple repair work.
