选用三种不同碳、铬含量的耐磨钢，通过热处理获得不同数量的二次碳化物和马氏体基体。
The effects of varying the amount of secondary carbide on the character of matrix under three-body abrasion of wear resistant steel have been investigated.
退火过程中析出的二次碳化物阻碍再结晶晶界的迁移，从而影响再结晶层的界面推移速率。
The secondary carbides have a strong influence on recrystallization rate by retarding the migration of recrystallization grain boundaries.
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.
出现再热脆性的主要原因是晶界粗大碳化物的析出和晶内二次硬化。
The authors suggest that the primary factors of the reheat embrittlement are precipitation of coarse carbide along the grain boundary and secondary hardening in the grain.
结果表明，提高冷却速率使合金二次枝晶间距及碳化物的尺寸减小。
The results indicate that both the length of secondary dendrite spacing and the size of carbides reduce with the increasing of cooling rate.
结果表明，提高冷却速率使合金二次枝晶间距及碳化物的尺寸减小。
The results indicate that both the length of secondary dendrite spacing and the size of carbides reduce with the increasing of cooling rate.
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