Development of a non-destructive technique for the detection of hydrogen embrittlement in landing gears

开发起落架氢脆无损检测技术

• 批准号: 538077-2018
• 负责人: Medraj, Mamoun
• 金额: $ 7.58万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=720441
• 关键词: Development; non; destructive; technique; detection

In collaboration with Safran Landing Systems Canada, this project aims at developing a Non-Destructive Testing (NDT) strategy for the detection of Hydrogen Embrittlement (HE) encountered in landing gears. Despite the efforts made to understand the hydrogen embrittlement problem, satisfactory methods of detection are still lacking. Early detection of the HE during manufacturing will eliminate the financial loss associated with further processing and prevent catastrophic failure of landing gears. With the current state of the problem, Safran is interested in advancing the search for satisfactory and feasible HE detection techniques. The primary scope is to determine the physical properties (e.g. thermal, electrical, magnetic) that are the most sensitive to the presence of hydrogen. Detecting hydrogen footprint through its effect on the physical properties of the landing gear steel is feasible unlike trying to detect the amount of hydrogen dissolved in the material.In this project, necessary studies for the development of an NDT technique based on physical property testing that can be applied during manufacturing will be carried out. This will enable monitoring the effect of hydrogen on physical and mechanical properties of landing gear materials and will enable observing the largest change in physical properties associated with loss of ductility and embrittlement. Laboratory scale experiments will be conducted and complimented with understanding the current industrial practices at Safran. This project will cover a wide range of expertise in materials & surface engineering, material processing, physical and mechanical properties & testing and failure analysis. All necessary equipment are available at the applicants' laboratories. This project will finally propose to Safran and other aerospace industries potential solutions for the long lasting hydrogen embrittlement detection problem. The research will provide technological and economic benefits to Canadian businesses in the aerospace sector along with other engineering applications such as pipeline failures in oil and gas industry.

该项目与加拿大塞夫兰（Safran Landing Systems）合作，旨在制定一种非破坏性测试（NDT）策略，以检测在起落架中遇到的氢含糖（HE）。尽管努力理解氢含氢问题，但仍缺乏令人满意的检测方法。制造过程中HE的早期发现将消除与进一步处理相关的财务损失，并防止着陆装置的灾难性失败。由于问题的当前状态，Safran有兴趣推进寻找令人满意和可行的HE检测技术。主要范围是确定对氢的存在最敏感的物理特性（例如热，电气，磁性）。与试图检测材料中溶解的氢数量不同，检测到氢足迹对起落架钢的物理性能的影响是可行的。在该项目中，将进行基于物理特性测试的NDT技术的必要研究，这些研究将在制造过程中进行。这将使监测氢对起落架材料的物理和机械性能的影响，并能够观察到与延展性和脆化损失相关的物理特性的最大变化。实验室规模的实验将得到进行并称赞，以了解萨弗兰当前的工业实践。该项目将涵盖材料和表面工程，材料处理，物理和机械性能以及测试与失败分析方面的广泛专业知识。申请人的实验室提供所有必要的设备。该项目最终将向Safran和其他航空航天行业提出潜在的解决方案，以解决持久的氢化剂检测问题。该研究将为航空航天部门的加拿大企业以及其他工程应用（例如石油和天然气行业的管道故障）提供技术和经济利益。