变质

Function of bond parameter Modificator Anti impact abrasive wear

化学键参数函数；变质剂；冲击耐磨性

medium-chromium cast iron ; modification ; modificator ; structure ; property ; wear resistance

在中铬铸铁的研究中发现，采用变质处理工艺能够改善中铬铸铁的组织和性能。

In application of high-strength spherulitic cast iron to thin-walled casting,the way to guarantee both high strength and chill -proof is described.The mechanism and factors such as quantity of modificator consumed,C-equivalent and wall thickness and their effect on the hilling tendency.

本文介绍高强度球墨铸铁用于制造薄壁铸件时，既保证高强度又防止白口的途径，并着重就变质剂的消耗、碳当量及壁厚对铸铁的白口倾向、金属基体变化及机械性能的影响机理进行了论述。

The results show that the modificator Mg can cause thermodynamic undercooling , and it may absorb in the crystal faces of preferential growth of carbides, which can slow down carbides growing up on plate type and make them tend to be fine, isolated and passivated, and thus the impact toughness is improved greatly.

研究结果表明：在过共晶高铬白口铸铁结晶过程中，变质元素Mg不仅造成热力学过冷，而且Mg可能吸附于碳化物择优长大的晶面上，起到阻碍碳化物片状长大的作用，使碳化物趋于细小、孤立，且边部钝化，使冲击韧度显著提高。

The results show that Re-K-Zn compound modificator has remarkable effects in high Chromium white cast iron when the modificator has 0.5%Re+2.0%K+0.008%Zn. The modificator not only or bar-like carbides but also improved the mechanical properties of high chromium white cast iron,with its impact toughness enhanced from 7.0J/cm2 to 11.7J/cm2 and its hardness enhanced from 54HRC to 57HRC, and the wear resistance increased by 350%.

实验结果表明：Re-K-Zn复合变质剂在高铬白口铸铁中有显著作用，而且当三者的加入量约为0.5%Re+2.0%K+0.008%Zn时，能显著细化组织，使其组织中网状碳化物变为粒状或条状，提高了高铬白口铸铁的力学性能，铸态冲击韧性由原来的7.0J/cm2提高到11.7J/cm2，硬度由原来的54HRC提高到57HRC，相对耐磨性能提高了3.5倍。

The effect of REAlTiBP multicomponent composite modifier to alloy structure and property of cast aluminum 117 was studied.

研究了REAlTiBP多元复合变质剂对ZL117合金组织和性能的影响。

According to deformation mechanism, sytectonic paragenetic association of minerals and deformation environment, metamorphic tectonites are divided into tectonic gneiss series, tectonic schists series and mylonitic series.

依据变形机制、组构、同构造新生矿物组合，以及形成环境，将韧性剪切带中变质构造岩分为构造片麻岩系列、构造片岩系列和糜棱岩系列。

Tanning converts the otherwise perishable skin to a stable and nondecaying material.

制革把容易腐烂的动物皮转换成稳定的、不会变质的材料。

Detailed investigations on hydrogen speciation, hydrogen content, and its isotopic composition of garnet and omphacite in Dabieshan eclogites from several typical localities have been made by this grant; this is the first systematic research of UHP metamorphic fluids from the point view of NAMs.

本项目对大别山典型产地的榴辉岩中的石榴石和辉石进行了详细的结构水赋存状态的确定、结构水含量的测量和氢同位素组成的分析，这是首次系统地从名义上无水矿物的角度来研究超高压变质流体。

The influence of Fe(superscript 2+) adjustment in omphacite on the p-t conditions has been discussed by comparison, and the charge balance method has been recommended as the ideal one for Fe(superscript 2+) adjustment in omphacite.

本文通过对南大别太湖地区和桐城地区榴辉岩中绿辉石的四种Fe(上标 2+)的校正比较，依据计算的峰期变质p-t条件和岩相学研究的限定，探讨了绿辉石Fe(上标 2+)的校正对温度压力计算的影响，认为电价平衡是目前较为理想的校正绿辉石Fe(上标 2+)的方法，并建议为保证分析的准确性和全面性，配合使用端元组分调Fe(上标 2+)法和Fe(上标 2+)/Fe(上标 3+)=1：1方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。