变质处理

Si及变质处理对Mg2Si/Mg复合材料的影响

Effects of Si Content and Modification on Microstructure and Properties of In-situ Mg_2Si / Mg Composites

研究了直接电解低钛A356合金锶变质处理及其衰退行为对合金组织及性能的影响。

The effect of strontium modification and its fading behavior on the microstructure and mechanical properties of the direct electrolytic A356 alloys were investigated .

C高；高碳高速钢的变质处理

Modification of High Carbon High Speed Steel

共晶铝硅合金Sr、RE以及P变质处理的研究

Study on Sr , RE and P Modification of eutectic Al-Si Alloy

静磁场对铝硅合金Na变质处理的影响

Effects of Static Magnetic Field on Na Modification of Al-Si Alloy

变质处理后，初晶Si和共晶Si平均尺寸在20μm以下；

The average size of primary silicon and eutectic silicon are less than 20 μ m ;

论证了在AlSi系过共晶铝合金压铸件生产过程中，AlP中间合金进行变质处理的必要性。

It is necessary to modify the hypereutectic Al-Si alloy by Al-P modifier in die casting .

变质处理M2铸造高速钢组织和性能研究

A Study of Structures and Properties of Modified M2 Cast High Speed Steel

铸造Al-Si合金变质处理的概况和发展趋势

A General Aspect and Development of Modification of Al-Si Alloy in Foundry

RE，Al复合变质处理可使铬钨合金白口铸铁的硬度、冲击韧度、耐磨性都得到提高。

The hardness , impact toughness , wear resistance of the high chromium casting iron containing wolfram by RE-Al modification treatment are all improved .

钨合金铸铁经K、Na变质处理后，共晶碳化物由网状分布变成团球状分布，碳化物明显细化和分布均匀化。

K and Na modification , eutectics carbide turns into nodular from network form , carbide is fined and is even distributed .

进行了Cr、C、Si合金化及变质处理来强韧中铬铸铁的试验；

Abstract The strengthening and toughening tests were carried out on medium chromium cast iron using Cr , C , Si alloying and inoculation treatment .

Al-Si合金变质处理效果炉前快速检测技术研究与应用状况

Review on Research and Application of the Technology for Fast Evaluating Al-Si Alloy Modification

在添加Si的基础上进行K/Na、Mo复合变质处理，有效的消除了Si的副作用，优化了H13钢的组织及性能。

The K / Na , Mo multiple modification can eliminate the side effect of Si obviously .

初生VC在稀土变质处理前呈椭圆形、方形、菱形和多角形等形态，经稀土变质处理后，完全变成了球形。

Without modification , the primary VC crystals are formed in the shape of ellipse , square , rhombus and polygon .

Al-Si合金广泛应用于发动机活塞等动力传递件，为提高其使用性能，必须对其进行变质处理。

Al-Si alloys are widely used for power-transmission parts such as the pistons in engines .

变质处理镁合金在SIMA法中的组织演变

Microstructure Evolution of Modification Processed Mg Alloy in the SIMA

采用不同处理状态的AlTiB中间合金和Al5%Sr中间合金，对轮毂铝合金Al7%Si035%Mg进行晶粒细化和变质处理。

Using Al Ti B and Al 5 % Sr master alloys in various treatment states , Al Si Mg alloy for wheel hub was refined and modified .

本论文的特色之处在于对高含Si量（Si含量≥20%）的大过共晶铝硅合金变质处理进行了全面系统的研究。

The characteristic of this essay is that we systematically analyzed the modification process of hypereutectic Al-Si alloy with high contents of Si on a pioneer stage .

探讨了碳、硅、锰等合金元素以及复合变质处理对中Mn白口铸铁组织和性能的影响。

The influence of alloying element e.gIC , Si , Mn and modification on the microstructure and properties of med-Mn ductile iron ais-cast was investigated .

研究变质处理对钨渣低铬（Cr≤2%）耐磨铸铁显微组织、力学性能及抗磨性的影响。

In this paper , effects of modification on the microstructure , mechanical properties and abrasive resistance of W slag low Cr wearproof cast iron are investigated .

化学细化法主要是通过添加P和稀土元素进行变质处理来达到细化硅相的目的，动力学处理方法主要有快速凝固、熔体温度处理、半固态铸造等。

As to modification , it mainly refers to add P and RE elements to hypereutectic Al-Si alloy melt . The way of dynamic processing method includes rapid solidification , melt temperature treatment and semi-solid casting .

铸态ZA合金时效后的组织与性能以及变质处理的影响

Microstructures and Properties of Cast ZA Alloys After Ageing and the Effect of Modification

Al-Si合金中Si的质量分数大于6%时必须进行变质处理，以改变硅相形态，提高其力学性能。

Al-Si alloy mast be modified to alter its silicon phase and increase its mechanical property when content of Si is greater than 6 % .

然而，Na、Sr、P变质处理均存在不同程度的局限性，如何改进变质效果，解决已存在的问题，研究者已作了很多富有成效的工作。

However , Na-modifying treatment , Sr-modifying treatment and P-modifying treatment exist limitations in different degrees . Researchers have done a great deal of effective study to solve the existing problems .

通过合金液变质处理、合金化学成分优化及热处理强化等，研制出一种新型压铸高强韧铝铜合金HB。

A new high strength and high toughness Al-Cu die casting alloy was developed through optimization of alloy composition , modification and heat treatment .

研究结果表明：（1）变质处理可消除钢中网状共晶碳化物，细化基体组织，还可减轻W、Mo元素偏析；

The result shows that : ( 1 ) the network eutectic carbides were eliminated , matrix structures were refined and the segregation of W and Mo elements were relieved ;

在优化压铸工艺的基础上，着重研究不经变质处理的基体合金中离异共晶St的形成机理、形态及其主要影响因素；

On the basis of optimizing squeeze casting processing , the formation , feature and main influence factors of modified eutectic silicon in matrix alloy are studied in this paper .

稀土变质处理的Al-Si合金活塞不仅有良好的室温性能，还能提高合金的高温强度。

The Al-Si alloy piston which modified by lanthanide not only has well room temperature performance , but also increases high temperature of the alloy .

通过化学成分的优化，N、Cr等元素的加入和变质处理等措施，得到在稳定性较低的奥氏体基体上弥散分布有粒状碳化物的铸态组织。

By means of optimum chemical compositions , additions of N , Cr into the melt and modification procedure , an as-cast structure with metastable austenite matrix and relatively even distribution of carbide particles was obtained .