复合变质处理使该合金中硅相细化，使布氏硬度提高50%，硬度可达HB84.9。
The hardness of the alloys which is modified is advanced by about 50%, appropinquity HB84.9.
研究了稀土-钛-氮复合变质处理对高硼合金钢组织和性能的影响。
The influence of rare earth, titanium and nitrogen on the structures and properties of high boron alloy steel was researched.
白口铸铁经复合变质处理后，其洛氏(HRC)硬度比变质前有明显提高。
The Rockwell (HRC) hardness of the white cast iron is obviously increased by complexly modifying compared with the corresponding cast iron without modification.
工业实验表明，复合变质处理高铬铸铁锤头的耐磨性约是高锰钢锤头的4倍。
It was found by industrial experiments that the wear resistance of the crusher hammers is about 4 times higher than that of the high manganese steel crusher hammers.
研究了高速钢成分、离心铸造工艺参数和复合变质处理对高速钢辊环性能的影响。
We research the effect of high speed steel compositions, centrifuge casting technology parameter and composite modification on the properties of high speed steel roll collar.
研究了稀土、铝复合变质处理对微量、多元低路白口耐磨铸铁组织和性能的影响。
The paper deals with the influence of RE and Al Complex metamorphosis on the wear resistant with cast iron which contains tiny multielement and low Cr.
复合变质处理使该合金中硅相细化，使布氏硬度提高50%，硬度可达HB84.9；
The hardness of the alloys which is modified is advanced by about 50%, appropinquity HB84.9;
通过铸造表面合金化和复合变质处理，使中锰奥氏体钢的强度、韧性和表面硬度显著提高。
The strength, toughness and surface hardness of medium Manganese austenitic steel have been increased greatly by casting surface alloying and complex modification.
结果表明，稀土—硅复合变质处理显著改善了碳化物的分布形态，并使铸铁的冲击韧性大幅度提高。
The experimental results show that RE-Si compound modification improves the morphology and the distribution of carbide and the impact toughness of vanadium white cast iron was increased remarkably.
优质改性高锰钢生产新工艺的核心是将分级变质处理、复合孕育处理和微合金化技术三位一体，互为作用。
The core of the new manufacturing process for the high quality upgraded Manganese steel is fractionation modification, composite inoculation and microalloying technique, which are affected each other.
采用稀土硅铁、低碳铬铁和复合变质剂对中铬铸铁进行变质处理后，组织细化、性能提高；
The experiment results showed the structure was refined and the properties were enhanced after adding modificator, such as rare-earth ferrosilicon.
采用稀土硅铁、低碳铬铁和复合变质剂对中铬铸铁进行变质处理后，组织细化、性能提高；
The experiment results showed the structure was refined and the properties were enhanced after adding modificator, such as rare-earth ferrosilicon.
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