pearlite

简明释义

英[ˈpɜːlaɪt]美[ˈpərlaɪt]

n. [材] 珠光体；[地质] 珍珠岩

英英释义

单词用法

同义词

反义词

例句

1.Ce is depleted from ferrite and pearlite surrounded by nodular graphite, and enriched in pearlite and ledeburite far apart from nodular graphite.

球墨周围的铁素体和珠光体是贫铈的，而远离球墨的珠光体和莱氏体是富铈的。

2.Tertiary 5. Vocational 10 people, mostly pearlite series production and development of new products.

大专5人。中专10人，主要生产和开发珍珠岩系列新产品。

3.Therefore it is necessary to research the damage law and security access technology of the pearlite heat resistant steels.

因而有必要研究珠光体耐热钢的损伤规律及安全评估技术。

4.The experimental results show that this block and black round structure is composed of pearlite blocks with variable plate intervals.

结果表明，这种黑色团状异常组织是由片间距不同的团状珠光体组成。

5.The resulting structure is a mixture of primary or pro-eutectoid ferrite (ferrite that formed above the eutectoid reaction) and regions of pearlite.

作为结果的组织结构是初步的共析铁素体(在共析反应前的铁素体)和部分珠光体的混合物。

6.The flow stress of ferrite/pearlite steel under uniaxial tension was simulated with finite element method (FEM) by applying commercial software MARC/MENTAT.

应用MARC/MENTAT商用有限元软件，对铁素体/珠光体钢的单向拉伸过程进行了有限元模拟。

7.The result shows that in a great scope of cooling rates, constant percentage of fine pearlite and ferrite can be obtained.

结果表明在相当大的冷却速度范围内，可获得稳定体积百分含量的细片状珠光体加铁素体组织。

8.According to principle of damage mechanics, the evolutional law of damage in pearlite ductile cast iron has been studied under fatigue and tension loading.

利用损伤力学原理，研究了珠光体球墨铸铁在疲劳和拉伸载荷作用下的损伤演变规律。

9.The microstructure of the steel revealed a significant amount of pearlite 珠光体, which contributed to its strength.

钢的微观结构显示出大量的pearlite 珠光体，这增强了其强度。

10.During the cooling process, the transformation of austenite to pearlite 珠光体 is critical for achieving desired mechanical properties.

在冷却过程中，奥氏体转变为pearlite 珠光体对获得所需的机械性能至关重要。

11.In the heat treatment process, pearlite 珠光体 formation can influence the hardness of the alloy.

在热处理过程中，pearlite 珠光体的形成会影响合金的硬度。

12.The presence of pearlite 珠光体 in cast iron improves its machinability.

铸铁中存在的pearlite 珠光体提高了其可加工性。

13.To achieve optimal performance, the steel must have a balanced ratio of pearlite 珠光体 and ferrite.

为了达到最佳性能，钢材必须具有适当比例的pearlite 珠光体和铁素体。

作文

In the field of materials science, the study of microstructures is essential for understanding the properties of different alloys. One of the most significant microstructures found in steel is known as pearlite, which is a unique combination of ferrite and cementite. Pearlite is formed during the cooling process of steel and consists of alternating layers of these two phases, giving it distinct mechanical properties that are crucial for various applications. The formation of pearlite occurs at specific temperatures, typically around 727 degrees Celsius, where the austenitic phase transforms into pearlite. This transformation is vital because it significantly enhances the strength and ductility of the steel. The presence of pearlite in steel allows it to withstand higher loads and resist deformation, making it suitable for construction and manufacturing industries.Understanding the characteristics of pearlite helps engineers and metallurgists design better materials. For instance, the amount of pearlite present in a steel alloy can be controlled through heat treatment processes. By adjusting the cooling rate, one can influence the proportion of pearlite relative to other microstructures like bainite or martensite. This control over microstructural composition is crucial for tailoring the mechanical properties of steel to meet specific requirements.Moreover, the mechanical properties of pearlite-forming steels are not only influenced by the amount of pearlite but also by its morphology. The spacing between the layers of ferrite and cementite can affect hardness and tensile strength. Finer pearlite, with closely spaced layers, generally results in stronger and tougher materials, while coarser pearlite may lead to increased brittleness.In practical applications, pearlite is often found in medium carbon steels, which are widely used in the manufacturing of automotive components, machinery, and tools. The balance of strength and ductility provided by pearlite makes these steels ideal for components that require both toughness and wear resistance. Additionally, the ability to manipulate the microstructure of steel through alloying elements and heat treatment allows for the development of advanced materials that can perform under extreme conditions.In conclusion, pearlite plays a pivotal role in the performance of steel and its applications across various industries. By understanding the formation, characteristics, and implications of pearlite in steel, engineers can innovate and create materials that meet the demands of modern technology. As research continues to evolve in the field of metallurgy, the importance of pearlite will remain significant, ensuring that we can develop stronger, more durable materials for the future.

在材料科学领域，微观结构的研究对于理解不同合金的性质至关重要。钢中最重要的微观结构之一被称为珠光体，它是铁素体和水泥石的独特组合。珠光体是在钢的冷却过程中形成的，由这两种相交替层组成，赋予其独特的机械性能，这对于各种应用至关重要。珠光体的形成发生在特定温度下，通常在727摄氏度左右，在此温度下，奥氏体相转变为珠光体。这种转变至关重要，因为它显著增强了钢的强度和延展性。珠光体的存在使钢能够承受更高的负荷并抵抗变形，使其适用于建筑和制造行业。理解珠光体的特性有助于工程师和冶金学家设计更好的材料。例如，钢合金中珠光体的含量可以通过热处理工艺来控制。通过调整冷却速率，可以影响珠光体与其他微观结构（如贝氏体或马氏体）之间的比例。这种对微观结构组成的控制对于定制钢的机械性能以满足特定要求至关重要。此外，珠光体形成钢的机械性能不仅受珠光体数量的影响，还受其形态的影响。铁素体和水泥石层之间的间距会影响硬度和拉伸强度。细小的珠光体，层间距紧密，通常会导致更强、更韧的材料，而粗大的珠光体可能会导致脆性增加。在实际应用中，珠光体通常出现在中碳钢中，这些钢广泛用于汽车零部件、机械和工具的制造。珠光体提供的强度和延展性的平衡使这些钢非常适合需要韧性和耐磨性的组件。此外，通过合金元素和热处理操控钢的微观结构的能力，使得开发能够在极端条件下表现的先进材料成为可能。总之，珠光体在钢的性能及其在各个行业中的应用中发挥着关键作用。通过理解珠光体在钢中的形成、特性和影响，工程师可以创新并创造出满足现代技术需求的材料。随着冶金领域研究的不断发展，珠光体的重要性将仍然显著，确保我们能够为未来开发出更强、更耐用的材料。