Zirconium in rare earth - magnesium - zirconium master alloy was determined by EDTA titrimetry.
采用EDTA滴定法测定了稀土镁锆中间合金中的锆。
But the addition of SM master alloy has some deleterious effect on the toughness of sintered steel.
但添加硅锰母合金对冲击韧性有不利影响。
The present situation of application and study of master alloy refiners in aluminum alloys was reviewed in this paper.
综述了中间合金细化剂对铝合金晶粒细化处理的研究与应用现状。
The invention relates to a magnesium-manganese master alloy prepared by a powder metallurgy method and a preparation method thereof.
本发明涉及一种采用粉末冶金方法制备的镁-锰中间合金及制备方法。
The structural changes of silicon manganese containing master alloy and the distribution conditions of manganese and silicon components have been observed.
观察了含硅锰母合金烧结钢的组织变化和合金元素锰、硅的分布情况。
The SM master alloy was used to add high oxygen affinity elements Mn and si into the sintered steel as alloying elements to improve the mechanical properties.
通过添加硅锰母合金，将硅、锰这两种对氧亲和力较高的元素加入到烧结钢中，以改善烧结钢的力学性能。
The present situation of development and application of master alloy refiners and mechanism of grain refinement in aluminum alloys was analyzed and discussed.
分析讨论了中间合金对铝合金晶粒细化处理的研究与应用现状及其细化机理；
Moreover, some of them are related to the inferior raw materials used and poor deoxidation in smelting of master alloy as well as to the contamination in powder treatment.
其次，与母合金冶炼所用原材料质量差、脱氧不良以及粉末处理的环境污染有关。
Effects of master alloy of quasicrystal containing magnesium additions and solution treatment on microstructure and mechanical properties of AZ91 magnesium alloy were studied.
研究了镁基准晶中间合金和固溶处理工艺对AZ91合金显微组织和力学性能的影响。
The cast precious metal alloy or master alloy has been found to have a reduced number of hard spots and reduced silicon contamination when compared to conventional casting methods.
当与常规铸造方法相比时，发现铸造的贵金属合金或母合金具有数量减少的硬点和降低的硅污染。
The present situation of application and study of master alloy refiners in aluminum alloys was reviewed in this paper. the typical mechanism of grain refine was analyzed and discussed.
综述了中间合金细化剂对铝合金晶粒细化处理的研究与应用现状。对具有代表性的细化机理进行了分析和讨论。
At present, research must stress on the development of new technology for the low cost production of scandium-bearing master alloy and the industrial application of aluminum-scandium alloys.
目前的研究重点是开发含钪中间合金的低成本生产新技术及含钪铝合金的工业应用。
In this paper, the alloying principle of re Mg alloy was described, at the same time, the processes for preparation of re Mg master alloy and smelting of re Mg alloy were introduced in detail.
阐述了稀土镁合金的合金化原理，对稀土-镁中间合金的制备方法及稀土镁合金的熔炼工艺作了较为详细的介绍。
A method for the joint determination of si, p, Mn, Cr in general and low alloy steels is discussed by means of spectrophotometry. The method is simple, rapid and easy to master.
探讨了采用分光光度法对普通钢、低合金钢中的硅、磷、锰、铬进行联合测定。
A method for the joint determination of si, p, Mn, Cr in general and low alloy steels is discussed by means of spectrophotometry. The method is simple, rapid and easy to master.
探讨了采用分光光度法对普通钢、低合金钢中的硅、磷、锰、铬进行联合测定。
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