Feasibility study: trial application of grain boundary plane enginering to commercially pure titanium

可行性研究：晶界平面工程在商业纯钛上的试验应用

• 批准号: EP/C01538X/1
• 负责人: Valerie Randle
• 金额: $ 7.98万
• 依托单位: Swansea University
• 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%2FC01538X%2F1
• 关键词: Feasibility; study; trial; application; grain

This feasibility study has been inspired by presentations and discussions at a conference of the EPSRC-funded Grain Boundary Engineering Network. It aims to assess if it is feasible to grain boundary engineer (GBE) commercially pure titanium, where GBE refers to the application of specialised thermomechanical processing in order to modify the population of specific boundary types to give more so-called 'special' boundaries. So far GBE has only been successful in cubic materials, and moreover there are relatively few studies in general of grain boundary structure in hexagonal metals. The new concept of 'grain boundary plane engineering will be explored, that is, the adaptation of low temperature/long duration anneals to promote more 'special' grain boundary planes. A novel, advanced electron backscatter diffraction based technique to measure all five grain boundary parameters (misorientation and plane) will be used. The experimental work will be carried out in conjunction with Carnegie Mellon University in the USA, where the new technique was developed. If the study demonstrates that it is feasible to GBE the grain boundary network in titanium, then it will be followed by a full grant proposal to EPSRC, probably joint with the National Science Foundation, in collaboration with colleagues in the USA.

这项可行性研究的灵感来自 EPSRC 资助的晶界工程网络会议上的演讲和讨论。它的目的是评估晶界工程（GBE）商业纯钛是否可行，其中GBE是指应用专门的热机械加工来修改特定晶界类型的总体，以提供更多所谓的“特殊”晶界。迄今为止，GBE仅在立方材料中取得了成功，而且对六方金属晶界结构的一般研究相对较少。将探索“晶界面工程”的新概念，即采用低温/长时间退火来促进更多“特殊”晶界面的形成。将使用一种新颖、先进的基于电子背散射衍射的技术来测量所有五个晶界参数（取向差和平面）。实验工作将与开发新技术的美国卡内基梅隆大学联合进行。如果该研究表明 GBE 钛晶界网络是可行的，那么随后将向 EPSRC 提出完整的资助提案，可能与美国国家科学基金会联合，并与美国的同事合作。