Alloy Design and Thermomechanical Processing of a Beta Titanium Alloy for a Heavy Vehicle Application

Peter, William H ; Blue, Craig A

Oak Ridge National Laboratory

关键词: Alloys;    Economics;    Implementation;    Processing;    36 Materials Science;   

DOI  :  10.2172/1016044
RP-ID  :  ORNL/TM-2010/136
RP-ID  :  DE-AC05-00OR22725
RP-ID  :  1016044

美国|英语

来源: UNT Digital Library

【 摘 要 】

With the strength of steel, but at half the weight, titanium has the potential to offer significant benefits in the weight reduction of heavy vehicle components while possibly improving performance. However, the cost of conventional titanium fabrication is a major barrier in implementation. New reduction technologies are now available that have the potential to create a paradigm shift in the way the United States uses titanium, and the economics associated with fabrication of titanium components. This CRADA project evaluated the potential to develop a heavy vehicle component from titanium powders. The project included alloy design, development of manufacturing practices, and modeling the economics associated with the new component. New Beta alloys were designed for this project to provide the required mechanical specifications while utilizing the benefits of the new fabrication approach. Manufacturing procedures were developed specific to the heavy vehicle component. Ageing and thermal treatment optimization was performed to provide the desired microstructures. The CRADA partner established fabrication practices and targeted capital investment required for fabricating the component out of titanium. Though initial results were promising, the full project was not executed due to termination of the effort by the CRADA partner and economic trends observed in the heavy vehicle market.