等温淬火球墨铸铁冲击试块加工方法对冲击值的影响

Influence of Processing Method on Impact Value of Impact Test Block for Austempered Ductile Iron

冲击实验结果是判断等温淬火球墨铸铁(简称ADI)性能的重要指标之一,通过对同铸造批次QTD1200-3试样毛坯通过不同加工方法制取冲击试样,根据实验结果验证不同加工方法对冲击功的影响。通过金相分析探讨导致结果差异的原因,以解决在产品交付过程中因试样加工方法差异造成的质量争议。

The impact test result is one of the important indicators to judge the properties of austempering ductile iron(ADI).The impact samples were made by different processing methods for the same batch of QTD1200-3 sample blanks,and the effects of different processing methods on the impact energy were verified according to the test results.Through the metallographic analysis,the reasons for the difference of results are discussed to solve the quality disputes caused by the difference of sample processing methods during product delivery.