A gradient diffusion layer exists between the layer and the matrix.

基体与熔凝层之间存在梯度扩散层.

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In diffusion layer , cracks were found after hardening and tempering.

调质使得扩散层产生裂纹.

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The characteristics of so - called silicon diffusion layer were analyzed through EPMA and hardness test.

通过成分分析(EPMA)和硬度测试,分析了硅扩散层的特征.

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