creep strength

简明释义

蠕变强度

英英释义

例句

1.The engineer calculated the creep strength of the material to ensure it would withstand long-term stress.

工程师计算了材料的蠕变强度以确保其能够承受长期的压力。

2.In high-temperature applications, knowing the creep strength is crucial for material selection.

在高温应用中，了解蠕变强度对于材料选择至关重要。

3.The research focused on enhancing the creep strength of composite materials for aerospace applications.

该研究专注于提高复合材料在航空航天应用中的蠕变强度。

4.Testing the creep strength of polymers helps predict their performance in real-world conditions.

测试聚合物的蠕变强度有助于预测它们在实际条件下的表现。

5.The creep strength of metals can significantly decrease when exposed to elevated temperatures.

金属的蠕变强度在高温下暴露时可能会显著降低。

作文

Creep strength is a crucial concept in materials science and engineering, particularly when dealing with high-temperature applications. It refers to the ability of a material to withstand deformation under constant stress over time, especially at elevated temperatures. As materials are subjected to prolonged exposure to heat and stress, they may begin to deform slowly, a phenomenon known as creep. Understanding creep strength (蠕变强度) is essential for engineers and designers who work with metals, polymers, and ceramics that will be used in environments where they are exposed to high temperatures for extended periods.In many industrial applications, such as power plants, gas turbines, and aerospace components, materials must maintain their structural integrity while operating at high temperatures. For instance, the turbine blades in jet engines are subjected to extreme conditions, including high temperatures and mechanical stresses. If the material used for these components does not possess adequate creep strength (蠕变强度), it can lead to catastrophic failures. Engineers must choose materials that not only have high tensile strength but also exhibit good creep strength (蠕变强度) to ensure safety and reliability.The creep strength (蠕变强度) of a material is often determined through laboratory testing, where samples are subjected to specific temperatures and loads for extended periods. The results help in predicting how a material will behave under similar conditions in real-world applications. Materials like superalloys, which are specifically designed for high-temperature applications, often exhibit superior creep strength (蠕变强度) due to their unique microstructure and composition.Another important aspect of creep strength (蠕变强度) is its dependence on temperature. As the temperature increases, the creep strength (蠕变强度) of most materials tends to decrease. This means that materials that perform well at room temperature may not necessarily do so at elevated temperatures. Therefore, understanding the temperature dependence of creep strength (蠕变强度) is vital for selecting the right material for a specific application.Moreover, the duration of exposure to stress and temperature plays a significant role in the creep strength (蠕变强度) of a material. Long-term exposure can lead to microstructural changes, such as grain growth or phase transformations, which can further reduce the material's ability to resist creep. Consequently, engineers must not only consider the initial creep strength (蠕变强度) but also how it might change over time under operational conditions.In conclusion, creep strength (蠕变强度) is an essential property that influences the performance and reliability of materials in high-temperature applications. By understanding the factors that affect creep strength (蠕变强度), engineers can make informed decisions when selecting materials for critical components. As technology continues to advance, ongoing research into improving creep strength (蠕变强度) will play a pivotal role in developing safer and more efficient systems across various industries.

蠕变强度是材料科学和工程中的一个关键概念，特别是在处理高温应用时。它指的是材料在恒定应力下随着时间的推移承受变形的能力，尤其是在高温下。当材料受到长时间的热和应力的影响时，它们可能会开始缓慢变形，这种现象称为蠕变。理解蠕变强度（creep strength）对从事金属、聚合物和陶瓷等材料的工程师和设计师至关重要，这些材料将在高温环境中使用。在许多工业应用中，如发电厂、燃气涡轮机和航空航天组件，材料必须在高温下保持其结构完整性。例如，喷气发动机中的涡轮叶片在极端条件下工作，包括高温和机械应力。如果用于这些部件的材料没有足够的蠕变强度（creep strength），可能会导致灾难性的故障。工程师必须选择不仅具有高抗拉强度而且表现出良好蠕变强度（creep strength）的材料，以确保安全和可靠性。材料的蠕变强度（creep strength）通常通过实验室测试来确定，在这些测试中，样品在特定温度和负载下持续一段时间。结果有助于预测材料在实际应用中在类似条件下的行为。像超合金这样的材料，专门设计用于高温应用，通常由于其独特的微观结构和成分而表现出优越的蠕变强度（creep strength）。蠕变强度（creep strength）的另一个重要方面是它对温度的依赖性。随着温度的升高，大多数材料的蠕变强度（creep strength）往往会降低。这意味着在室温下表现良好的材料在高温下可能不一定表现良好。因此，理解蠕变强度（creep strength）的温度依赖性对于选择特定应用的正确材料至关重要。此外，暴露于应力和温度的持续时间在材料的蠕变强度（creep strength）中也起着重要作用。长期暴露可能导致微观结构变化，如晶粒长大或相变，这可能进一步降低材料抵抗蠕变的能力。因此，工程师不仅必须考虑初始的蠕变强度（creep strength），还必须考虑在操作条件下随时间变化的情况。总之，蠕变强度（creep strength）是影响高温应用中材料性能和可靠性的一个重要属性。通过理解影响蠕变强度（creep strength）的因素，工程师可以在选择关键组件的材料时做出明智的决策。随着技术的不断进步，持续研究改善蠕变强度（creep strength）将在各个行业开发更安全、更高效的系统中发挥关键作用。