martensitic

简明释义

英[mɑrˈtɛnˌsɪtɪk]美[mɑrˈtɛnˌsɪtɪk]

adj. 马氏体的

英英释义

单词用法

同义词

反义词

例句

1.And the influence of annealing temperature was also found to be caused by the expansion coefficient difference and martensitic transition.

晶化处理温度对因热胀系数差异带来的热拉应力因马氏体相变而致的相变压应力均有不同程度的影响。

2.A low carbon martensitic spring steel has been developed to meet the requirements of variable-cross-section plate spring for trucks.

为适应变截面汽车板簧用材所需，研制了一种低碳马氏体型弹簧钢。

3.Structural steels, Carbon content. Low-alloy steels. Ferritic and martensitic stainless steels.

结构钢，碳钢，低合金钢，鉄素体和马氏体不锈钢。

4.The results of researching for crystallographic aspect and mechanism of martensitic transformation in zirconia ceramics have been reviewed in this paper.

本文综述了自氧化锆被开发应用以来，人们关于氧化锆中马氏体相变晶体学和相变机制的研究成果。

5.The principle for the oil-quenching and tempering technology of two high chromium martensitic stainless steels is introduced.

介绍两种高铬马氏体不锈钢的油淬火回火工艺原理；

6.The stress takes some effects on the martensitic transformation.

应力对于马氏体相变有一定的影响。

7.When carburized under high carbon potential (1. 1% C), microcracks tend to appear on the martensitic matrix near the outer surface of the layer.

表面碳势为1.1%C的渗碳硬化层内，临近外表面部位的枣核马氏体中会出现显微裂纹。

8.Many automotive parts are made from martensitic 马氏体的 steels for their superior mechanical properties.

许多汽车零件由马氏体的钢材制成，以获得优越的机械性能。

9.In the manufacturing of cutting tools, martensitic 马氏体的 stainless steel is often preferred due to its hardness.

在切削工具的制造中，通常优先选择马氏体的不锈钢，因为它的硬度较高。

10.Research shows that martensitic 马氏体的 microstructures can enhance the wear resistance of components.

研究表明，马氏体的微观结构可以增强组件的耐磨性。

11.The martensitic 马氏体的 transformation occurs when steel is rapidly cooled from austenitizing temperatures.

当钢材从奥氏体化温度快速冷却时，会发生马氏体的转变。

12.The steel used in this construction is a high-quality martensitic 马氏体的 alloy that provides excellent strength.

这栋建筑使用的钢材是一种高质量的马氏体的合金，提供出色的强度。

作文

The term martensitic refers to a specific microstructure that forms in steel and other alloys when they are rapidly cooled from a high temperature. This process, known as quenching, transforms the austenitic phase of the metal into a harder and more brittle structure. Understanding the characteristics of martensitic steel is crucial for various applications, particularly in the manufacturing of tools, machinery, and components that require high strength and wear resistance.One of the most notable features of martensitic steel is its hardness. The rapid cooling during the quenching process prevents the carbon atoms from diffusing out of the iron lattice, which results in a distorted crystal structure that enhances hardness. However, this increased hardness comes at a cost; martensitic steels tend to be more brittle than their austenitic counterparts. As a result, careful consideration must be given to the heat treatment processes used to achieve the desired balance between hardness and toughness.In engineering applications, martensitic steels are often used in the production of cutting tools, bearings, and other components that experience high levels of stress and wear. For example, high-speed steel, which is commonly used for drill bits and saw blades, exhibits martensitic properties that enable it to maintain sharpness and resist deformation under extreme conditions. Additionally, martensitic stainless steels are widely utilized in industries such as aerospace, automotive, and medical devices due to their excellent corrosion resistance combined with high strength.The heat treatment of martensitic steels is a critical aspect of their performance. After the initial quenching, a tempering process is often employed to reduce brittleness while retaining most of the hardness. During tempering, the martensitic structure undergoes a transformation that allows some carbon atoms to diffuse, resulting in a more stable microstructure. This process not only enhances toughness but also improves ductility, making the material more suitable for practical applications.Furthermore, the study of martensitic transformations is an essential area of metallurgical research. Scientists and engineers continually explore ways to manipulate the microstructure of steels to achieve superior properties. By adjusting alloying elements, cooling rates, and heat treatment protocols, they can fine-tune the characteristics of martensitic steels to meet specific requirements for different applications.In summary, the term martensitic describes a unique and advantageous microstructure found in certain steels that contributes to their hardness and strength. While it offers significant benefits for a variety of industrial applications, understanding the trade-offs related to brittleness and toughness is essential for engineers and manufacturers. As technology advances, the ability to control and optimize martensitic transformations will continue to play a pivotal role in the development of new materials and products that meet the demands of modern industry.

术语martensitic指的是在钢铁和其他合金中形成的一种特定微观结构，当它们从高温快速冷却时。这一过程称为淬火，将金属的奥氏体相转变为更硬且更脆的结构。理解martensitic钢的特性对于各种应用至关重要，特别是在制造工具、机械和需要高强度和耐磨性的组件时。martensitic钢最显著的特征之一是其硬度。在淬火过程中，快速冷却阻止了碳原子从铁晶格中扩散，导致形成一种扭曲的晶体结构，从而增强了硬度。然而，这种硬度的增加是有代价的；martensitic钢比其奥氏体对应物更脆。因此，在实现所需的硬度和韧性之间的平衡时，必须仔细考虑所使用的热处理工艺。在工程应用中，martensitic钢通常用于生产切削工具、轴承和其他承受高应力和磨损的组件。例如，高速钢，常用于钻头和锯片，展现出martensitic特性，使其能够在极端条件下保持锋利并抵抗变形。此外，martensitic不锈钢因其优异的耐腐蚀性和高强度，广泛应用于航空航天、汽车和医疗设备等行业。martensitic钢的热处理是其性能的关键方面。在初次淬火后，通常会进行回火处理，以降低脆性，同时保留大部分硬度。在回火过程中，martensitic结构经历了一种转变，允许一些碳原子扩散，从而形成更稳定的微观结构。这个过程不仅增强了韧性，还改善了延展性，使材料更适合实际应用。此外，研究martensitic转变是冶金研究的重要领域。科学家和工程师不断探索操纵钢的微观结构以获得优越特性的方式。通过调整合金元素、冷却速率和热处理方案，他们可以精细调节martensitic钢的特性，以满足不同应用的具体要求。总之，术语martensitic描述了一种独特且有利的微观结构，存在于某些钢中，促成其硬度和强度。尽管它为各种工业应用提供了显著的好处，但理解与脆性和韧性相关的权衡对工程师和制造商至关重要。随着技术的进步，控制和优化martensitic转变的能力将继续在新材料和产品的发展中发挥关键作用，以满足现代工业的需求。