Visiting Fellowship for Professor Matthew Krane: The Interaction of Solidification and Infiltration in Metal Matrix Composite Processing

Matthew Krane 教授访问学者：金属基复合材料加工中凝固与渗透的相互作用

• 批准号: EP/E002498/1
• 负责人: Mark Jolly
• 金额: $ 6.82万
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE002498%2F1
• 关键词: Visiting; Fellowship; Professor; Matthew; Krane

Mixing ceramics in the form of particulate or fibres with metals gives the materials' engineer another class of materials and expands their design envelope. These materials are known as Metal Matrix Composites (MMCs). The final properties of the MMCs are influenced by the properties of the ceramic, the matrix and the interface between the two. This short programme of work will investigate the influence that the ceramic particles have on the structure, and therefore properties, of the metal matrix during the manufacturing stage.Ceramic particulate performs will be infiltrated with either an aluminium alloy or a Ni-based superalloy under controlled conditions. For the aluminium alloy this means using controlled uphill filling and impregnation of the perform. For the superalloy this means controlling temperature gradient and solidification rate in a single crystal furnace. Both aluminium and nickel-based materials microstructures will be characterised and related back to the processing conditions.This new work will be compared with some previously unpublished work on the change of microstructures observed in fibre reinforced aluminium based MMCs. The final outcome of the work will be to influence the development of techniques for modelling microstructures in process modelling codes using the cellular automaton method.

将陶瓷以颗粒或纤维的形式与金属混合，为材料工程师提供了另一类材料，并扩展了其设计范围。这些材料被称为金属基复合材料（MMC）。复合材料的最终性能受陶瓷、基体以及两者之间界面的影响。这个简短的工作计划将研究陶瓷颗粒在制造阶段对金属基体的结构和性能的影响。陶瓷颗粒预制件将在受控条件下渗透铝合金或镍基高温合金。对于铝合金，这意味着使用受控的上坡填充和预成型件的浸渍。对于高温合金，这意味着控制单晶炉中的温度梯度和凝固速率。铝基和镍基材料的微观结构将被表征并与加工条件相关联。这项新工作将与一些以前未发表的关于纤维增强铝基金属基复合材料中观察到的微观结构变化的工作进行比较。这项工作的最终成果将影响使用元胞自动机方法在过程建模代码中建模微结构的技术的发展。

项目成果

Processing Effects on the Solidification Micrstructures in the Constrained Geometry of a Metal Matrix Composite

加工对金属基复合材料约束几何结构凝固微观结构的影响

• 发表时间: 2007
• 作者: M Krane