Improvement in Ultrasonic Inspectability by Development of Microstructural Controlled Low Noise Billet and High Sensitivity Probe for Ti-6A1-4V Alloy

摘要：

As for Ti-6Al-4V alloy billets, the influence of microstructure on ultrasonic noise generation is clarified and the microstructural control technology is developed. Low noise billets can be developed by acceleration of segmentalization and equiaxialization of primary alpha phase that forms colony. Moreover,the phased array probe that achieves better focus attention at the center of billets is developed. Ultrasonic inspection sensitivity by the application of the developed probe to the microstructural controlled 200 mm diameter billet significantly exceeds AMS 2631 Class AA in signal-tonoise ratio.

关键词： Ti-6Al-4V microstructural control colony phased array probe signal-to-noise ratio

作者: Shigeomi Araki Shunsuke Mochida Keiji Kinoshita Shogo Murakami Takeshi Kudo Kouichi Inagaki

作者单位: Takasago Works,KOBE STEEL.,LTD.,Hyogo 676-8670 Japan Materials Reseach Laboratory,KOBE STEEL.,LTD.,Hyogo 651-2271 Japan Materials Technology Department,IHI Corporation,Tokyo 190-1297 Japan

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 620-623

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）