摘要
V-4Cr-4Ti is the leading candidate vanadium alloy as structural material of a V-Li blanket. Due to the interaction between Ti and interstitial solutes of C, N, and O, precipitation occurs at 600--700℃, increases the alloy strength significantly but reduce its ductility. As the ductility reduction is in an acceptable level, the strengthening might be utilized for the components that are subjected to high stress levels. Although cold work （CW） is known as an effective way to strengthen an alloy, so far few reports were found on strengthening a vanadium alloy by cold rolling.
基金
Supported by the Core University Program （CUP） between Japan and China and the National Natural Science Foundation of China （50271025）
