Engineering Studies- HSC Course Essay example

4331 Words Mar 27th, 2014 18 Pages
Engineering Studies – HSC Course

Assessment Task 2

Page 1…………………………………………………………………………….Title Page

Page 2…………………………………………………………………………….Material Properties

Page 3…………………………………………………………………………….Reynolds 853

Page 4…………………………………………………………………………….Reynolds X100

Page 5…………………………………………………………………………….Titanium alloy

Page 6…………………………………………………………………………….7005 Aluminium alloy

Page 7…………………………………………………………………………….Carbon Fibre

Page 8…………………………………………………………………………….4130 Chromium Molybdenum Steel

Page 9…………………………………………………………………………….Results

Page 10……………………………………………………………………………Table of Materials

Page 11……………………………………………………………………………Conclusion

Page 12……………………………………………………………………………Recommendation

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So it is widely available, and although aluminium on its own cannot compete, the alloy ‘X100’ is a contender. In this alloy, the combination of aluminium and lithium create relatively good strength.

The strength of X100, although not steel quality is still strong, they use different methods after the alloy is created to give it strength. Two of the methods that are used to prepare the alloy for a bike frame are strain hardening and precipitation hardening. Even with these hardening techniques, it is thought to be one-third the strength of steel. With the added lithium, aluminium becomes less dense and the stiffness is steeply increased. The strength of this alloy is questionable, but with this lack of strength comes another property, it is extremely light. When it comes to bike frames weight is obviously exceedingly important, and this alloy happens to be weightless in comparison to steel. The amazing thing about ‘Reynolds X100’ is that instead of deteriorating over time it will in fact begin to harden over lengthy amounts of time (age hardening). A topic related to strength is resistance to corrosion, and unlike ‘Reynolds 853’, Reynolds X100 has an exceptionally great resistance to rust. Aluminium is known for stoping rust as it forms an oxide layer over its surface, preventing the start of decay.

The element aluminium is noted for its terrible resistance to fatigue, and aluminium going under stress for lengthy amounts of

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