| 摘要 |
PURPOSE:To manufacture a Ti alloy for high temp. service having superior ductility and strength by hot working an alpha+beta type Ti alloy and subjecting it to soln. heat treatment, water hardening, process annealing and aging under specified conditions. CONSTITUTION:An ingot of an alpha+beta type Ti alloy for high temp. service such as Ti-6Al-2Sn-4Zr-2Mo is cast, hot worked, and subjected to soln. heat treatment at 960 deg.C for 1hr, water hardening, process annealing at 750-800 deg.C for <=1hr and aging by holding at 593 deg.C for 8hr. Hardening is carried out by the aging to manufacture a Ti alloy for high temp. use having superior mechanical properties such as strength and ductility.
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