Newly developed titanium alloy sheets for the exhaust systems of motorcycles and automobiles

Abstract

A primary purpose for the use of titanium in exhaust systems is weight reduction that improves both the vehicle performance and fuel effi ciency. Although weight savings are attractive, the oxidation resistance and strength of commercially pure titanium at elevated temperatures limit its application to certain parts or vehicles. This paper discusses the improvement of hightemperature properties of titanium with alloy modifi cations and introduces the properties of a patent-pending, low-alloyed titanium, TIMETAL ® Exhaust XT. 1

A comparison of Ti–Ni and Ti-Sn binary alloys processed using powder metallurgy

“…Commercially pure titanium (CP-Ti) exhibits excellent corrosion resistance properties and is widely applied in marine or chlorine containing environments, such as in reaction vessels and heat exchangers [1][2][3]. Compared to stainless steels or other corrosion resistant metals and alloys, CP-Ti also provides a high strength-to-weight ratio, and is consequently favourable for application as a structural material in environments with mass constraints.…”

The potential applications for titanium metal powder and their life cycle impacts

“…A typical car exhaust system weighs about 20 kg, and weight reductions on the order of 40-50% have been reported 13,14 when titanium is used in place of steel or stainless steel. This results in a CP titanium exhaust system of about 11 kg, or a 9 kg reduction in car body weight.…”

Numerical Simulation of Forming Titanium Thin-wall Panels with Stiffeners

“…They have a well-established position in aviation and aerospace [7,9,10,30]. Titanium sheets are increasingly used in the automotive [13,14,18,19] and medical industries [17,20,21,25], and recently also in civil engineering [5] as well as in offshore structures [22,28]. The growing interest in the use of titanium sheet products is due to the excellent properties of titanium, including high specific strength (strengthto-weight ratio) and good resistance to most corrosive environments.…”