球状渗碳体
Fine and uniform cementite with spherical appearance distribute on the crystal boundary of equiaxed ferrite crystals. The size of spherical cementite particle is about 1 μ m and the size of ferrite grain is about 3 μ m.
在本实验条件下,细小、圆形的渗碳体均匀的分布在铁素体等轴晶粒的晶界处,球状渗碳体颗粒大小约为1μm,铁素体的平均晶粒大小约为3μm;
There are two possible mechanism about spheroidization ofcementite: the fracture cementite lamellae grows up non-uniformly and the fine spherical cementite particles grows up as the core.
渗碳体的球化可能以两种机制进行:破碎渗碳体片的非均匀长大和细小球状渗碳体颗粒的形核长大。
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