相关实验视频
Updated: Jan 29, 2026

05:15
Flash Infrared Annealing for Perovskite Solar Cell Processing
Published on: February 3, 2021
8.6K
对于高碳钢的快速球形化化过程
Bei Li1, Zhi Tong2, Mengying Zhao1
1Research Institute of Technology, Shougang Group Co., Ltd., Beijing 100041, China.
Materials (Basel, Switzerland)
|January 28, 2026
概括
这项研究引入了使用低温预处理的高碳钢的快速球化化工艺. 该方法加快了碳化物球化,以减少时间和能量实现所需的硬度.
科学领域:
- 材料科学 材料科学 材料科学
- 金工业是金工业的一个方面.
- 热处理 热处理
背景情况:
- 球体化化对于高碳钢至关重要,平衡硬度和可加工性.
- 传统方法需要长时间的回火时间和高能耗.
研究的目的:
- 开发一种高碳钢的快速球化化工艺.
- 为了减少加工时间和能源消耗,同时保持材料性能.
主要方法:
- 采用了一种新的低温预处理,然后再加热至临界以下.
- 在非平衡阶段的碳化物沉物 (马石/低石) 被用作核化场所.
- 在400°C的优化预处理温度.
主要成果:
- 实现了同质的球形化微观结构.
- 获得了206.7HV的硬度,与传统火相提并论.
- 显著减少处理时间和能源消耗.
结论:
- 快速球化化工艺对于高碳钢是有效的.
- 这种方法提供了一种更有效,更可持续的替代传统化方法.
- 该工艺成功地平衡了硬度和可加工性,减少了资源投入.
相关概念视频
Steel Fastening Techniques
1.3K
Steel sections can be joined together through various fastening techniques including riveting, bolting, and welding, each suitable for different structural requirements and conditions.
Rivets are cylindrical steel fasteners with a specially designed head. During application, rivets are heated until white-hot and then inserted through pre-drilled holes in the steel sections. A pneumatic hammer is used to shape the exposed end into a second head, securing the sections together.
Bolting is another...
Rivets are cylindrical steel fasteners with a specially designed head. During application, rivets are heated until white-hot and then inserted through pre-drilled holes in the steel sections. A pneumatic hammer is used to shape the exposed end into a second head, securing the sections together.
Bolting is another...
1.3K
The Carbon Cycle
43.7K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
43.7K
Steel Manufacturing
1.4K
Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
1.4K
Carbon Skeletons
114.8K
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
114.8K
Structural Steel Products
674
Structural steel products are created within a structural mill. The process begins with a beam blank that is reheated and then fed through a series of rollers. These rollers progressively shape the metal into its final form. Adjusting the spacings between the rollers allows for the production of different sections with the same nominal dimensions.
Once shaped, the steel's final form emerges as a continuous length, which is then segmented by a hot saw into manageable pieces. These segments...
Once shaped, the steel's final form emerges as a continuous length, which is then segmented by a hot saw into manageable pieces. These segments...
674
Mechanical Characteristics of Steel
1.1K
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
1.1K

