首页 | 本学科首页   官方微博 | 高级检索  
     

SUS306不锈钢热疲劳损伤的超声无损评价
引用本文:马世伟,袁康.SUS306不锈钢热疲劳损伤的超声无损评价[J].声学技术,2008,27(2):206-209.
作者姓名:马世伟  袁康
作者单位:上海大学机电工程与自动化学院,上海市电站自动化技术重点实验室,上海,200072
基金项目:国家自然科学基金 , 上海市教育基金
摘    要:对经过高温热处理和断裂拉伸实验的SUS306不锈钢模拟试样进行了接触法高频超声测试,对获得的超声反射波信号进行分析.得到了相应的超声波衰减系数与试样平均晶粒尺寸、断裂伸长率之间的关系,对利用超声脉冲反射技术进行材料热疲劳损伤进展的无损评价具有实际意义。

关 键 词:超声无损评价  衰减系数  晶粒尺寸  断裂伸长率
文章编号:1000-3630(2008)-02-0206-04
收稿时间:2007/6/26 0:00:00
修稿时间:2007年6月26日

Ultrasonic nondestructive evaluation to the thermal fatigue damage of SUS306 stainless steel
MA Shi-wei and YUAN Kang.Ultrasonic nondestructive evaluation to the thermal fatigue damage of SUS306 stainless steel[J].Technical Acoustics,2008,27(2):206-209.
Authors:MA Shi-wei and YUAN Kang
Affiliation:(School of Mechatronic Engineering & Automation, Shanghai University, Shanghai Key Laboratory of Power Station Automation Technology, Shanghai 200072, China)
Abstract:The high frequency ultrasonic test of using direct contact method to SUS306 stainless steel samples, which were treated by high temperature heat treatment and stretch experiment, is described in this paper. The ultrasonic attenuation coefficient, average grain diameter and elongation at breaking of the sample being tested are obtained through echo analysis. The relationships between average grain diameter, elongation at breaking and ultrasonic attenuation coefficient of samples are also established. These results are expected to be useful for earlv assessment of material thermal fatigue damage advance.
Keywords:ultrasonic nondestructive evaluation  attenuation coefficient  grain diameter  elongation atbreaking
本文献已被 维普 万方数据 等数据库收录!
点击此处可从《声学技术》浏览原始摘要信息
点击此处可从《声学技术》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号