Heat Treatment of Metals - Specifying Heat Treatments

涵盖了主题

背景

Localised and Bulk Heat Treatment

为什么热处理金属

指定热量的重要性Treatments

Specifying Properties for Heat Treated Metals

Iron and Steel Heat Treatment

背景

金属的热处理，具体取决于温度下的温度和持续时间，会导致微观结构的变化，改变残余应力模式，并在称为同质化的过程中可以减少整个结构的组成变化。

Localised and Bulk Heat Treatment

该过程通常涉及固态反应，可以应用于正在加工的金属总量（大量热处理）或局限于选定的表面积（局部或表面热处理）。

为什么热处理金属

在大多数情况下，如果没有热处理，合金的金属将无法提供强度和延展性的设计特性组合。这可能导致许多操作情况过早失​​败。

Terms such as annealing, stress relieving, normalising, hardening, tempering, precipitation hardening, solution treating, ageing, homogenisation and so on relate to the physical conditions applied to metals undergoing heat treatment.

指定热量的重要性Treatments

设计工程师和金属制造商在制造制造程序时必须提供针对热处理要求的规范。因此，由于缺乏热处理计划，因此通常会在制造周期后期面临问题。通常，这些问题最终导致不可接受的大小变化，产品失真或表面降解。

Specifying Properties for Heat Treated Metals

It is also important to recognise what are the important mechanical and physical properties that are to be obtained from the heat treatment process. These should be included in the product specification together with test procedures which enable verification of the results obtained.

Iron and Steel Heat Treatment

On a processed mass basis, iron and steel would make up the major share of heat treated product, be it stress relief of weld fabricated components, normalising or annealing quenching and tempering or surface hardening.

资料来源：从工程材料手册中抽象，5欧洲杯足球竞彩^Th版。

有关此消息来源的更多信息，请访问The Institute of Materials Engineering Australasia。