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Determining the Mechanical Strength of Ultra-Fine-Grained Metals
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预测高基超级合金中的颗粒大小
Jingzhe Wang1,2, Siyu Zhang1,2, Liang Jiang3
1State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.
Materials (Basel, Switzerland)
|September 9, 2023
概括
这项研究整合了建模和实验,以预测工业造品的粒径. 这种方法通过验证实验室到全尺度的模拟来完善基于的超级合金的制造.
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.
- 计算材料科学科学 计算材料科学
背景情况:
- 材料社区越来越多地使用试验和验证方法,结合计算和实验方法.
- 基于的超级合金的粉末金就是一个例子,需要通过模拟和实验来精确控制微观结构和特性.
研究的目的:
- 为预测工业造品的颗粒大小提出一个综合方法.
- 展示建模和实验验证的应用,从实验室规模的测试开始,到全面的工业部件.
主要方法:
- 进行圆柱形压缩试验,以收集精确的流量应力数据并定义热加工加工窗口.
- 进行实验室规模验证的双体试验.
- 在与生产类似的条件下进行验证的亚尺度造.
- 利用建模和模拟,根据热机械加工条件预测金属流量,应变,应变速率,温度和结果颗粒大小.
- 用实验数据对模型进行校准,以实现可接受的预测准确度,用于设计和评估工业造品.
主要成果:
- 综合方法成功地预测了工业造品中的颗粒大小.
- 模型与实验数据的校准确保了适合实际工程应用的预测准确性.
- 该方法验证了模拟预测在多个规模,从实验室实验到全面的工业造.
结论:
- 开发的综合方法有效预测工业造品的粒度大小.
- 这种方法可以设计和评估具有所需微观结构特征的造品.
- 试验和验证策略增强了基于的超级合金的受控生产.
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