ductile material

简明释义

延性材料

英英释义

例句

1.In metalworking, ductile materials 延展性材料 are preferred for processes like bending and stretching.

在金属加工中，延展性材料更适合用于弯曲和拉伸等工艺。

2.Aluminum is considered a ductile material 延展性材料 that can be easily manipulated without breaking.

铝被认为是一种延展性材料，可以在不破裂的情况下轻易操作。

3.Copper is often used in electrical wiring because it is a good ductile material 延展性材料 that can be easily shaped.

铜常用于电线，因为它是一种良好的延展性材料，可以很容易地成型。

4.The construction industry favors steel as a ductile material 延展性材料 for its ability to withstand heavy loads.

建筑行业青睐钢铁作为一种延展性材料，因为它能承受重负荷。

5.Gold is a highly ductile material 延展性材料, capable of being drawn into very thin wires.

黄金是一种高度延展性材料，能够被拉成非常细的线。

作文

Ductility is an important property of materials that allows them to deform under tensile stress. In engineering and manufacturing, the term ductile material refers to substances that can be stretched into thin wires without breaking. This characteristic is crucial for many applications, especially in construction and manufacturing industries. For instance, metals like copper and aluminum are considered ductile materials because they can be easily drawn into wires and shaped into various forms. The ability of a ductile material to undergo significant plastic deformation before rupture makes it advantageous in applications where flexibility and resilience are required. When subjected to stress, ductile materials will exhibit noticeable elongation, allowing them to absorb energy and prevent sudden failure. This is particularly important in structures such as bridges and buildings, where materials must withstand various forces without collapsing. In contrast, brittle materials, which do not exhibit this property, tend to fracture or snap under stress with little warning. Understanding the difference between ductile and brittle materials is essential for engineers and designers. For example, while designing a suspension bridge, engineers prefer using ductile materials for the cables and support structures to ensure that the bridge can endure dynamic loads, such as wind and traffic, without catastrophic failure. Moreover, the ductility of a material can be influenced by several factors, including temperature, strain rate, and the presence of impurities. For instance, metals generally become more ductile at elevated temperatures, which is why processes like forging and welding often involve heating the materials. Additionally, certain alloying elements can enhance the ductility of a metal, making it more suitable for specific applications. Another key aspect of ductile materials is their ability to undergo necking, a phenomenon that occurs when a material is stretched beyond its yield point. During necking, the material begins to thin out at a specific location, which ultimately leads to failure. However, this process provides valuable warning signs before complete failure occurs, allowing for preventive measures to be taken. In summary, ductile materials are fundamental in various engineering applications due to their ability to deform without breaking. Their unique properties allow structures to be flexible and resilient, reducing the risk of sudden failure. As technology advances, the study of ductility continues to play a vital role in developing new materials and improving existing ones. Understanding the characteristics and behaviors of ductile materials enables engineers to make informed decisions, ensuring safety and reliability in their designs.

延展性是材料的一种重要特性，允许它们在拉伸应力下变形。在工程和制造中，术语延展性材料指的是那些可以被拉伸成细丝而不破裂的物质。这一特性对许多应用至关重要，尤其是在建筑和制造行业。例如，铜和铝等金属被视为延展性材料，因为它们可以很容易地被拉成电线并塑造成各种形状。延展性材料在受拉应力时能够经历显著的塑性变形，避免突然断裂，使其在需要灵活性和韧性的应用中具有优势。当受到应力作用时，延展性材料会表现出明显的延长，从而吸收能量，防止突然失效。这一点在桥梁和建筑等结构中尤为重要，因为这些材料必须承受各种力量而不倒塌。相比之下，脆性材料则不会表现出这种特性，往往在应力下迅速断裂或折断。因此，理解延展性材料与脆性材料之间的区别对工程师和设计师至关重要。例如，在设计悬索桥时，工程师更倾向于使用延展性材料作为电缆和支撑结构，以确保桥梁能够承受风和交通等动态负荷，而不会发生灾难性失败。此外，材料的延展性还受到多种因素的影响，包括温度、应变速率和杂质的存在。例如，金属在高温下通常会变得更加延展，因此锻造和焊接等工艺通常涉及加热材料。此外，某些合金元素可以增强金属的延展性，使其更适合特定应用。延展性材料的另一个关键方面是它们能够经历颈缩现象，这种现象发生在材料被拉伸超过屈服点时。在颈缩过程中，材料在特定位置开始变薄，最终导致失效。然而，这一过程在完全失效发生之前提供了宝贵的警告信号，使得可以采取预防措施。总之，延展性材料由于其在变形时不易断裂的特性，在各种工程应用中是基础。它们独特的性质使结构具有灵活性和韧性，降低了突然失效的风险。随着技术的进步，延展性的研究在开发新材料和改进现有材料中继续发挥着重要作用。理解延展性材料的特征和行为使工程师能够做出明智的决策，确保他们设计的安全性和可靠性。