subzero treatment

Effects of Different Heat Treatment Process and Subzero Treatment on Hardness and Microstructure of D2 Steel

不同热处理工艺及深冷处理对D2钢硬度及组织的影响

subzero treatment of cold-forging die made of high speed steel and it's application

高速钢冷作模具深冷处理及应用

The effects of macromolecular dispersant and subzero treatment on the preparation of ultrafine non agglomerative zirconia powders have been studied.

研究了高分子分散剂及低温处理在制备无团聚超细氧化锆粉末中的作用。

A study was wade to increase its surface layer hardness by subzero treatment, during which retained austenite transformed into martensite.

通过深冷处理可使部分残余奥氏体转变成马氏体，从而提高了表面硬度。

ultrafine non-agglomerative zirconia powders prepared by subzero treatment

低温处理制备无团聚氧化锆超细粉末的研究

The hardness variation of D2 steel under different quenching temperature and the influence of subzero treatment on hardness of D2 steel were studied, and its microstructure was analyzed as well.

研究了D2钢在不同温度淬火后的硬度变化，以及深冷处理对其硬度的影响，并对其显微组织进行了分析。