| 摘要 |
PURPOSE:To enable accurate ultrasonic flaw detection, by applying aging to a beta-type titanium alloy material before finished as solution treated product thereof to perform a ultrasonic flaw detection with alpha phase deposited. CONSTITUTION:When manufacture a product from beta-type titanium alloy material by having hot worked material undergoing a solution treatment at a temperature range exceeding beta transformation point, the dumping of ultrasonic wave is large in an ultrasonic flaw detection and inspection of a solution treated product itself. Therefore, execution of an ultrasonic flaw detection with a high sensitivity will cause upright echoes frequently due to coarser particle size which make it impossible to detect internal defects accurately. To avoid this, an aging is applied to the alloy material to deepest alpha phase before finished as solution treated products, a condition which an ultrasonic is performed and thus, accurate ultrasonic flaw detection is made possible.
|
