Method of ultrasonic inspection of As-Cast titanium alloy articles

摘要

A method is provided of non-destructively inspecting titanium alloy articles in the as-cast condition using ultrasonic waves to detect internal flaws, the article comprising modification of grain structure in the as-solidified ingot structure by the addition of trace boron to various titanium alloys 1. The article is ultrasonically inspected 2 to determine whether it has any internal flaws before being shipped 3 for further processing. The provision of trace boron improves the ability to ultrasonically inspect as-cast items by refining the grain structure and reducing background noise, and improves hot workability 4 which permits an economical method of manufacture of titanium alloy articles destined for high performance applications 5.