Before the significant use of titanium alloys in gas turbine engines what material was used? and why are titanium alloys more adapt for the job.
2006-12-02 23:23:25 · 3 answers · asked by jack m 1 in Science & Mathematics ➔ Engineering
Steel was the primary material used along with other alloying metal additives. Steel is still used today in the low power and low price range end of it. But they use titanium for high end, high efficiency, and low weight. Titanium is an excellent choice of material for an aircraft engine because the metal is extremal tough and will flex rather then break, it is super light weight, and it doesn't effect any other metals in the area with galvanic corrosion.
2006-12-02 23:34:42 · answer #1 · answered by nick_dyke4x4 2 · 1⤊ 0⤋
Steel was primarily used, but due to its heavy nature it was replaced with a much lighter material. Titanium is also more resistant to corrosion, and since turbines are used in a lot of high temperature combustion effluent operations titanium (or Ti alloys) are preferred since it retains its mechanical properties at very high temperature relative to low alloy SS's. But higher alloyed stainless steels are still used in todays gas/steam turbines. Ti and high alloyed SS are also suited for standard operating conditions w.r.t. Creep, Fatigue and thermal expansion.
2006-12-03 16:25:33 · answer #2 · answered by burton235 3 · 0⤊ 0⤋
Ceramics. High temp alloys can be molded and are somewhat flexible. Ceramics tend to be brittle.
2006-12-03 07:28:27 · answer #3 · answered by regerugged 7 · 0⤊ 0⤋