Semi-solid extrusion of steel grade X210CrW12 under isothermal conditions using ceramic dies

Near‐net shaping of geometrically complex diving knife by semisolid steel casting using ceramic mould system

“…This indicates effortless material flow, as intended in semisolid metal processing, and is consistent with results obtained in previous work on thixoextrusion applying the same tool concept. 20 Form filling simulation corroborates this conclusion drawn on flow behaviour, yielding similar flow velocities on both sides of the surrounded mould cores. Moreover, peak flow Fig.…”

“…This observation is in agreement with previous investigations on the interaction of alumina with semisolid steel 28 and thixoextrusion experiments using the same tool concept. 20,29 Thus, the wear and corrosion resistance of the applied moulds is expected to be high.…”

“…20 First experimental results in steel thixoextrusion revealed that forming forces are drastically reduced and homogeneous material flow was achieved during forming, thus avoiding phase separation. 21 While the general feasibility of this tool concept has been demonstrated on the example of extruded bars of increased shape complexity compared to plain circular bars produced by other authors, [22][23][24] the full potential in terms of geometric aspects relevant for thixocasting, e.g.…”

Flow mechanism of 9Cr18 steel during thixoforging and its properties for functionally graded material

“…As for steel alloy, the high forming temperature needs specific dies. Muenstermann et al [16] designed ceramic dies for semi-solid extrusion of X210CrW12 steel. Fig.…”

A review of the semi-solid processing of steel

“…The combination of Ni alloy 2.4631 and HVOF gave the best results. A self-heating ceramic tool (sintered alumina with a heating coil) has been successfully developed by Muenstermann et al [60] for thixoextrusion of X210CrW12. Almost isothermal processing can be achieved.…”