Through the orthogonal experiment, studies and analyseshave been made of the influences of Si/C, Cr%, Cu% and B% on structurs,sectional sensitivity, microhardlness of pearlite and carbide, as well as Brinell-hardness.

• 通过正交试验方法,模索了Si/C,Cr%25,Cu%25,B%25等因素对金相组织、断面敏感性、珠光体和碳化物显微硬度,以及布氏硬度的影响规律,并对其结果从理论方面进行了分析讨论。