SBIR Phase II: Assessment of Manufacturing and Fatigue Damage Effects in Titanium Alloys Using Induced Positron Annihilation

这个小型企业创新研究(SBIR)第二阶段研究项目将开发一个原型诱导正电子制造损伤系统(IPMDS)，用于评估Ti-6Al-4V和IN738组件的初始组件质量和制造损伤影响。IPMDS是基于感应正电子湮没技术，其评估阿尔法夹杂和疲劳损伤效应的能力以前已经得到证明。IPMDS是一种创新的损害评估工具，将在Precision Cast Corporation(PCC)的支持下开发，作为一种制造质量控制和损害评估工具，用于取代目前昂贵且对制造或运营损害影响不够敏感的现有破坏性方法，以降低成本。IPMDS将为钛和镍高温合金行业的延长使用部件设计、节省成本和高效运营做出贡献。IPMDS的商业应用将针对结构和涡轮发动机行业，这些行业广泛使用昂贵的钛和镍高温合金部件。IPMDS在最大限度地减少制造变异性、评估操作损害、优化维护要求、降低成本和提高安全性方面具有很高的潜力，可以成为这些行业的关键和必要的检查工具。预计IPMDS能力将把检验应用扩展到广泛的行业，在这些行业中，提高对制造变异性、诱发损坏影响、最大限度地减少检验和更换成本以及延长部件寿命的知识非常重要。

This Small Business Innovation Research (SBIR) Phase II research project will develop a prototype Induced Positron Manufacturing Damage System (IPMDS) to be used to assess initial component quality, and manufacturing damage effects for Ti-6Al-4V and IN738 components. The IPMDS is based on the Induced Positron Annihilation technologies whose capabilities to assess alpha inclusion and fatigue damage effects have been previously demonstrated. The IPMDS is an innovative damage assessment tool that will be developed with support from Precision Cast Corporation (PCC) as a manufacturing quality control and damage assessment tool to be used to reduce costs in place of current destructive methods, which are expensive and do not provide adequate sensitivity to either manufacturing or operational damage effects. The IPMDS will contribute to extended use component designs, cost savings, and efficient operations for the titanium and nickel super-alloy industries. Commercial applications of IPMDS will be targeted at the structural and turbine engine industries, which extensively utilize expensive titanium and nickel super-alloy components. The IPMDS has a high potential for becoming a critical and necessary inspection tool in these industries due to its potential for minimizing manufacturing variability, assessing operational damage, optimizing maintenance requirements, reducing costs, and improving safety. The IPMDS capability is expected to extend inspection applications to a wide range of industries where improved knowledge of manufacturing variability, induced damage effects, minimization of inspection and replacement costs, and component life extension are important.