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Article: High-energy X-rays monitor solidification.
- Article from:
- Advanced Materials & Processes
- Article date:
- February 1, 1999
- Author:
CopyrightCOPYRIGHT 1999 ASM International. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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High-energy transmission X-ray diffraction (XRD) is a technology in which high energy X-rays penetrate a material and produce a distinctive diffraction pattern. It is the basis of a solidification sensing technique that enables real-time monitoring of castings inside their molds by indicating whether the material is a solid or liquid. This article briefly reviews the XRD transmission technique, and describes how it is used to study the solidification of a single-crystal nickel alloy turbine blade.
X-Ray diffraction technology
High-energy X-rays are able to penetrate through the mold material surrounding a casting, and produce a distinctive diffraction ...