初级加工对钢组织和性能的影响

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引用次数: 0

摘要

夹杂物和化学偏析是许多涉及钢零件的工艺诱发失效的因素。夹杂物是生产过程中引入的非金属化合物;偏析是凝固过程中发生的一种化学分配。本章讨论了偏析和夹杂物的来源及其对钢的力学性能和显微组织的影响。它解释了如何识别各种类型的包裹体和特征的偏析模式,如带状。还介绍了热加工对凝固组织的影响以及枝晶间偏析产生的化学变化。
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Primary Processing Effects on Steel Microstructure and Properties
Inclusions and chemical segregation are factors in many process-induced failures involving steel parts. Inclusions are nonmetallic compounds introduced during production; segregation is a type of chemical partitioning that occurs during solidification. This chapter discusses the origins of segregation and inclusions and their effect on the mechanical properties and microstructure of steel. It explains how to identify various types of inclusions and characteristic segregation patterns, such as banding. It also describes the effect of hot work processing on solidification structure and the chemical variations produced by interdendritic segregation.
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