摘要:Liquid-solid forming under high pressure involves the solid?ification coupled with deformation under high pressure, which will improve the properties of materials or products without requiring very high forming load. Squeeze casting is a typical liquid-solid forming process under high pressure proposed initially by Russian researchers in the 1930s. Later, semisolid forming processes have been widely established since 1970s. It is worthy to mention that the international conference of semisolid processing on alloys and composites has been held for 12 times (one time every two years) in different countries. With the progress of technologies on the liquid-solid forming, liquid-solid extrusion process and other new processes have also been developed since 1980s. Recent advances have been achieved in the field of liquid?solid forming under high pressure, which encourages us to summarize them for better development in the future.