Abstract
Lightweight can not only reduce the running energy consumption of the railway vehicle, but also reduce the running wheel-rail dynamic force, and unsprung mass lightweight has a more significant impact. Titanium alloy is very suitable for spring railway vehicle manufacturing. Titanium alloy spring can reduce its own weight and stress, and it has the capability of anticorrosion. But there is no experience in titanium alloy spring material heat treatment and strengthening process for reference. In this paper, the research is carried out, and the heat treatment method and strengthening process suitable for the titanium alloy spring manufacture is summarized. And the observation of the microstructure and mechanical properties test of the spring show that the titanium alloy spring can meet the technical requirement by adopting appropriate heat treatment method and strengthening process.
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