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Steel Manufacturing01:26

Steel Manufacturing

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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...
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Updated: Jan 18, 2026

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature
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优化复杂超合金件中固化结构的造过程参数.

Shaoli Han1,2, Heli Luo1,2, Shangping Li1,2

  • 1High-Temperature Materials Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China.

Materials (Basel, Switzerland)
|September 13, 2025
PubMed
概括
此摘要是机器生成的。

优化基超合金件包括控制固化参数. 同时的双向填充和调整温度在复杂的薄壁组件中促进均,细的等轴粒.

关键词:
造了粒度结构的造.冷却速度的冷却速度填充流量场填充流量场灌温度的温度.贝的温度是贝的温度.

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科学领域:

  • 材料科学与工程 材料科学与工程
  • 金工业是一种金工业.
  • 计算材料科学科学 计算材料科学

背景情况:

  • 基于的超级合金的投资造往往导致不均的粒度结构.
  • 复杂的几何形状和凝固过程中的热梯度导致不良的粗柱状粒.
  • 控制微观结构对于超合金组件的性能至关重要.

研究的目的:

  • 为了优化薄壁基超合金件的粒度结构.
  • 研究造参数对谷物形态学的影响.
  • 为复杂超合金组件中微结构控制提供实用方法.

主要方法:

  • 使用ProCAST软件进行了细胞自动机有限元 (CAFE) 模拟.
  • 在固化过程中建模温度场和谷物生长动态.
  • 通过实验造验证了模拟结果.

主要成果:

  • 化金属流动模式显著影响局部温度场和粒状形成.
  • 同时的双向填充减少了热梯度,并促进了等轴粒.
  • 降低倒和外温度,以及更高的冷却速度,精细的粒度结构和更好的均性.

结论:

  • 优化的造参数,包括模具填充策略和热条件,显著提高了粒度的均性.
  • 与实验验证相结合的CAFE模拟为微观结构控制提供了一个强大的工具.
  • 这些发现使得复杂的超合金件的粒度结构可以得到更好的控制.