Processing method for raising strength and toughness of TC4-DT titanium alloy sheet materials

• Main Authors: MAO XIAONAN, GUO PING, HAN DONG, ZHAO YONGQING, LEI WENGUANG, HONG QUAN, JIA YUJU, ZHANG YONGQIANG, LI LEI
• Format: Patent
• Language: Chinese; English
• Published: 23.10.2013
• Subjects: CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention provides a processing method for raising strength and toughness of TC4-DT titanium alloy sheet materials. The method comprises the following steps: first, TC4-DT titanium alloy ingot castings are subjected to cogging forging to obtain first forging stocks; second, the first forging stocks are subjected to first upsetting forging to obtain second forging stocks; third, the second forging stocks are subjected to second upsetting forging to obtain third forging stocks; fourth, the third forging stocks are subjected to drawing forging to obtain fourth forging stocks; fifth, the fourth forging stocks are subjected to saw cutting blanking, heated, and subjected to plate slab pressing forging to obtain semi-finished product sheet materials with a thickness of 31mm-56mm; sixth, the semi-finished product sheet materials are subjected to heat treatment and machine processing treatment to obtain TC4-DT titanium alloy sheet materials with a thickness of 25mm-50mm. The processed TC4-DT titanium alloy sheet m