摘要
通过实验,本文作者确立了稀土—碱土金属复合变质对改变低铬白口铸铁中碳化物形态的有效性。在此基础上,进一步研究了这种复合变质处理对改善低铬白口铸铁的韧性、抗磨粒磨损能力的作用。实验证实:这种作用是显著的。本文还提出了由碳化物数量、分布、磨损面硬度等因素构成的抗磨参数与相对耐磨性的线性关系。
The effectiveness of rare-earth find alkali-earth metsls complex modi- fication to transform the carbide morphology of low chromium white cast irons has bees established in preceding paper. Eased on experiments, authors futher studyied the effcet of this complex modification treatment on toughness and abrasion resistance of low chromium white cast irons.The results confirm that the effect(?)is prominant. Authors suggest the linear relationship between the anti-abrasion parameters consisting of the amount and distribution of carbides, abrasive surface hardness and the abrasion resistance in this paper.
关键词
稀土
碱土金属
变质处理
白口铸铁
rare-earth and alkali-earth metal
complex modification treatment
low chromium white cast iron
