Predicting corrosion of magnesium alloys with complex microstructure and reactivity

预测具有复杂微观结构和反应性的镁合金的腐蚀

• 批准号: 402825-2010
• 负责人: Mauzeroll, Janine
• 金额: $ 14.26万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=573370
• 关键词: Predicting; corrosion; magnesium; alloys; complex

The automobile industry is a key component of the Canadian economy. If this industry is to prosper while simultaneously reducing its environmental impact the development of non-gasoline powered vehicles with an economically viable range before recharging is required. One key way to achieve this is to reduce automobile weight. As a consequence, magnesium alloys have become a rapidly growing area of interest because of their low density and high-strength-to-weight ratio. However, one major issue limiting their extensive use in automobile applications is their susceptibility to corrosion when they are in contact with more stable materials such as carbon steel and aluminum. This project will investigate these corrosion issues using a combined experimental and modelling approach, and will lead to the development of novel experimental and modelling procedures. A primary goal will be the development of predictive models to determine the corrosion rates of various materials combinations. These models will offer guidance on corrosion issues to those involved in the development of specific casting and coating strategies and facilitate the more timely development of automobile components. To achieve these goals a team knowledgeable in the key areas of alloy casting, the microscopic characterization of materials, corrosion science and modern electrochemical techniques has been assembled. The multidisciplinary nature of the project will challenge individual researchers to expand their capabilities beyond their present levels. The project will be conducted in collaboration with the General Motors of Canada and its associated laboratories, where active research in this area is well underway.

汽车工业是加拿大经济的重要组成部分。如果这个行业要繁荣，同时减少其对环境的影响，非汽油动力车辆的发展与经济上可行的范围之前，充电是必需的。实现这一目标的一个关键方法是减轻汽车重量。因此，镁合金由于其低密度和高强度重量比而成为一个快速增长的感兴趣的领域。然而，限制其在汽车应用中广泛使用的一个主要问题是，当它们与更稳定的材料（如碳钢和铝）接触时，它们对腐蚀的敏感性。 该项目将使用实验和建模相结合的方法来调查这些腐蚀问题，并将导致新型实验和建模程序的开发。主要目标是开发预测模型，以确定各种材料组合的腐蚀速率。这些模型将为那些参与制定特定铸造和涂层策略的人提供有关腐蚀问题的指导，并促进更及时地开发汽车零部件。 为了实现这些目标，我们组建了一个在合金铸造、材料微观表征、腐蚀科学和现代电化学技术等关键领域知识渊博的团队。该项目的多学科性质将对研究人员提出挑战，使他们的能力超越目前的水平。该项目将与加拿大通用汽车公司及其相关实验室合作进行，该领域的积极研究正在进行中。