The invention discloses an isomeric low-
alloy high-strength steel structure
electric arc additive manufacturing process, and relates to the technical field of
electric arc additive manufacturing, the isomeric low-
alloy high-strength steel structure
electric arc additive manufacturing process comprises the following steps: carrying out heat treatment and tensile test on a low-
alloy high-strength steel wire to obtain
test data, and establishing a process parameter-
performance prediction model according to the
test data; obtaining a performance demand of a target structural member, and drawing up a process parameter by using a process parameter-
performance prediction model according to the performance demand; an electric arc additive manufacturing
system is used for conducting electric arc additive manufacturing on the low-alloy high-strength steel wire, and a low-alloy high-strength steel structural part is obtained; acquiring temperature information of the low-alloy high-strength steel structural member by using an
infrared thermal imager, and adjusting the process parameters in real time according to the temperature information to obtain a target structural member; gradient distribution of
precipitation strengthening phases is achieved, isomerism of
alloy element in-situ strengthening low-alloy high-strength steel materials is achieved, and the diversified requirements of target structural parts for different strengths and
plasticity are met.