Nickel-based alloy composite plate produced based on transition intermediate blank and preparation method of nickel-based alloy composite plate

The invention relates to a nickel-based alloy composite plate produced based on a transition intermediate blank and a preparation method of the nickel-based alloy composite plate. The nickel-based alloy composite plate is formed by compounding two groups of single-layer combined blanks; wherein the single-layer combined blank comprises a transition middle blank, a first base plate and a steel plate which are sequentially arranged from top to bottom; the compounding is performed between two groups of steel plates; and the transition intermediate blank comprises a nickel-based alloy plate and a second substrate which are sequentially arranged from top to bottom. According to the nickel-based alloy composite plate, in the preparation process, the intermediate blank is compounded in advance, so that the compounding rate can be guaranteed; due to the adoption of a hierarchical mechanism, coating is avoided, online solid solution is easier, and the anti-corrosion performance is enhanced; in addition, the intermedia