碳化物网

结果表明，经过钒铁变质处理，高速钢组织中的碳化物网被打断，经过热处理后，碳化物进一步球化，分布更均匀。

The results revealed that the eutectic carbide networks are broken after modification , and the carbides are spheroidized and changed to rod-like or nodular , and distributed more uniformly after heat treatment .

采用炉前加入1稀土硅铁合金、Ti-Fe、V-Fe、Nb-Fe对铸造多元高合金冷作模具钢进行变质处理，细化了晶粒，使连续网状碳化物断网。

By adopting the 1 # RE-Si-Fe , Ti-Fe , V-Fe , Nb-Fe , the high carbon and high alloy cold - working mould steel is modified . The results show that the carbide of consecutive reticulation is cut and the crystal is diminished .

高速钢轧辊经钾&稀土复合变质处理后，不仅碳化物和基体组织明显细化，还出现共晶碳化物断网现象，产生了较多的小块状和颗粒状碳化物。

The carbides and matrix of cast HSS modified by potassium and rare earth ( RE ) were fined and broken network eutectic carbides were achieved , and many little lumps and grain carbides were produced as well .