hypoeutectic

简明释义

英[ˌhaɪpəʊjuːˈtektɪk]美[ˌhaɪpojʊˈtektɪk]

adj. 亚共晶的

n. 低级低共熔体

英英释义

单词用法

同义词

反义词

例句

1.The preparation of hypoeutectic Al-Si alloy billets for semisolid forming by low temperature casting was studied .

研究了低温铸造法制备亚共晶铝硅合金半固态成形用坯料。

2.The analysis and study laid emphasis on the microstructure characteristic of hypoeutectic white cast iron in order to resolve the difficult problems of low useful life and high brittleness.

重点分析研究其微观组织特征，目的是解决亚共晶白口铸铁使用寿命短和脆性大的难题。

3.The effects of alloying elements, modification treatment and thermoplast ic deformation on the structure and properties of hypoeutectic white cast iron was studied and discussed.

探讨了合金元素、变质处理和热塑性变形对亚共晶白口铸铁组织和性能的影响，确定 了合适的成分范围。

4.Effects of inclined Angle on semi-solid microstructure of hypoeutectic high cr cast iron prepared by inclined plate cooling method were investigated.

采用倾斜板冷却体法对亚共晶高铬铸铁进行半固态成形，研究了倾斜板角度对亚共晶高铬铸铁半固态组织的影响规律。

5.The surface of the hypoeutectic white cast iron of great wearable work piece in common use was treated by laser hardening.

对要求高耐磨的大型工件常用的亚共晶白口铸铁材料进行了不同条件的激光表面强化处理。

6.The spheroidizing grow, in isothermal spheroidizing process, of carbides formed from deformation under high temperature in, hypoeutectic white cast iron is studied.

对亚共晶白口铸铁经高温形变后所获得的碳化物在等温球化过程中球化长大进行了研究。

7.The mechanical property of the hypoeutectic high chromium cast iron extrusion samples was analyzed after extruded by semi-solid rheocasting forming.

分析了亚共晶高铬铸铁半固态浆料进行流变挤压成形后挤压件的力学性能。

8.The goods for longer periods of time for casting hypoeutectic AL-Si alloy modification.

本品用于浇注时间较长的亚共晶铝硅合金的变质处理。

9.Based on the greenness idea, the greenization planning on the hypoeutectic cast Al-Si alloy is provided.

根据绿色化思想，对铸造亚共晶铝硅合金进行了绿色化规划探讨。

10.In metallurgy, a material that is classified as hypoeutectic 亚共晶的 typically has a lower melting point than the eutectic composition.

在冶金中，分类为hypoeutectic 亚共晶的材料通常具有低于共晶成分的熔点。

11.The hypoeutectic 亚共晶的 alloy showed improved strength compared to its eutectic counterpart.

与其共晶合金相比，该hypoeutectic 亚共晶的合金显示出更强的强度。

12.During solidification, the hypoeutectic 亚共晶的 phase forms before the eutectic structure.

在固化过程中，hypoeutectic 亚共晶的相在共晶结构之前形成。

13.The hypoeutectic 亚共晶的 composition can be advantageous in casting applications for better mechanical properties.

在铸造应用中，hypoeutectic 亚共晶的成分可以带来更好的机械性能。

14.When analyzing the microstructure, we observed typical features of a hypoeutectic 亚共晶的 alloy.

在分析微观结构时，我们观察到了hypoeutectic 亚共晶的合金的典型特征。

作文

In the field of materials science, understanding the phases and structures of alloys is crucial for developing new materials with desired properties. One important classification of alloys is based on their composition relative to the eutectic point. Alloys can be categorized as hypoeutectic, eutectic, or hypereutectic. Among these, the term hypoeutectic (低共晶的) refers to alloys that contain less solute than the eutectic composition. This essay aims to explore the characteristics, formation, and applications of hypoeutectic alloys in various industries. A hypoeutectic alloy is defined as one that has a composition that lies to the left of the eutectic point on a phase diagram. For instance, in the case of the lead-tin alloy system, the eutectic composition occurs at approximately 61.9% tin and 38.1% lead. Any alloy with a tin content less than this percentage is considered hypoeutectic. The microstructure of hypoeutectic alloys typically consists of a primary phase that solidifies first, followed by the eutectic structure that forms during the last stages of solidification. The formation of hypoeutectic alloys involves the solidification process where the primary phase crystallizes from the liquid solution before the eutectic reaction occurs. As the temperature decreases, the primary phase forms and grows until the remaining liquid reaches the eutectic composition. At this point, the liquid transforms into two solid phases simultaneously, creating a fine microstructure that enhances the mechanical properties of the alloy. This unique solidification behavior results in hypoeutectic alloys having excellent strength and toughness compared to their eutectic counterparts. Applications of hypoeutectic alloys are widespread in various industries. For example, in the automotive sector, hypoeutectic aluminum-silicon alloys are commonly used for engine components due to their lightweight nature and good castability. These alloys exhibit improved wear resistance and thermal stability, making them ideal for high-performance applications. Additionally, hypoeutectic copper-tin alloys, such as bronze, are utilized in marine environments due to their corrosion resistance and durability. Moreover, the ability to tailor the properties of hypoeutectic alloys through heat treatment and alloying elements further enhances their versatility. By adjusting the composition and processing conditions, engineers can optimize the performance of these materials for specific applications, leading to innovations in manufacturing and design. In conclusion, hypoeutectic alloys play a vital role in modern materials science and engineering. Their unique solidification characteristics, coupled with their advantageous mechanical properties, make them suitable for a wide range of applications across different industries. Understanding the principles behind hypoeutectic alloys allows researchers and engineers to develop new materials that meet the ever-evolving demands of technology and industry. As we continue to explore the potential of these alloys, it is clear that their significance will only grow in the future.

在材料科学领域，理解合金的相和结构对于开发具有所需特性的材料至关重要。合金的一个重要分类是基于其相对于共晶点的成分进行划分。合金可以分为低共晶、共晶或高共晶。在这些中，术语hypoeutectic（低共晶的）指的是含有比共晶成分更少溶质的合金。本文旨在探讨hypoeutectic合金在各个行业的特性、形成和应用。 hypoeutectic合金被定义为其成分位于相图上共晶点左侧的合金。例如，在铅锡合金体系中，共晶成分大约发生在61.9%的锡和38.1%的铅。任何锡含量低于此百分比的合金都被认为是hypoeutectic。hypoeutectic合金的微观结构通常由首先固化的主要相组成，随后在固化的最后阶段形成共晶结构。 hypoeutectic合金的形成涉及从液体溶液中固化的过程，其中主要相在共晶反应发生之前结晶。当温度降低时，主要相形成并生长，直到剩余液体达到共晶成分。此时，液体同时转变为两种固体相，形成细微的微观结构，从而增强合金的机械性能。这种独特的固化行为导致hypoeutectic合金的强度和韧性优于它们的共晶对应物。 hypoeutectic合金的应用在各个行业中广泛存在。例如，在汽车行业，hypoeutectic铝硅合金因其轻巧的特性和良好的铸造性而被广泛用于发动机部件。这些合金表现出优异的耐磨性和热稳定性，使其非常适合高性能应用。此外，hypoeutectic铜锡合金（如青铜）因其耐腐蚀性和耐用性而在海洋环境中得到应用。 此外，通过热处理和合金元素调整hypoeutectic合金的性能进一步增强了其多样性。通过调整成分和加工条件，工程师可以优化这些材料的性能以满足特定应用的要求，从而推动制造和设计的创新。 总之，hypoeutectic合金在现代材料科学和工程中发挥着至关重要的作用。它们独特的固化特性，加上其有利的机械性能，使它们适用于不同工业中的广泛应用。理解hypoeutectic合金背后的原理使研究人员和工程师能够开发出满足技术和工业不断发展的需求的新材料。随着我们继续探索这些合金的潜力，很明显，它们的重要性在未来只会增加。