扫描电镜观察表明，加入铝，可抑制锻后空冷条件下先共析网状碳化物的析出；
The microstructure analysis by SEM showed that the precipitation of netlike proeutectoid carbide has been inhibited during air cooling after forging due to Al addition to the UHCs.
与不加稀土时相比，焊缝中沿晶界析出碳化物的尺寸减小、数量减少、析出形态由网状析出变为不连续的颗粒状，抗晶间腐蚀能力得到提高。
Intergranular corrosion resistance was increased owing to the lessening of carbide particles formed at austenite grain boundaries and morphology changing from reticular to granular.
WC原始颗粒以各种复式碳化物的形式析出，分别形成枝状或鱼骨状共晶碳化物、网状二次碳化物及大块状碳化物。
Multiple carbides are precipitated from WC particles, which form many different shapes such as dendrite or fishbone eutectic carbide, reticulation secondary carbide and conglomeration carbide.
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