由于硼在钢中的特殊行为及其提高淬透性的机制与一般合金元素显著不同,故硼钢的淬透性曲线和淬透性带也具有一系列特点。这些特点与硼钢的生产和应用有很大关系。本文对这些特点做了归纳和叙述,并从冶金学观点分析了形成原因,对如何稳定硼钢淬透性和充分利用硼钢淬透性的特点提出了看法。 Due to the special behavior of boron in steel and its mechanism to improve the hardenability significantly different from the common alloying elements, boron steel hardenability curve and hardenability with a series of features. These characteristics have great relationship with the production and application of boron steel. This paper summarizes and describes these characteristics, and analyzes the formation reasons from the viewpoint of metallurgy. It also puts forward some opinions on how to stabilize the hardenability of boron steel and make full use of the hardenability of boron steel.