| SUS304不锈钢拉伸过程中的声-热像特征 |
| |
| 引用本文： | 欧阳浩,石健,张志魁,赵广慧.SUS304不锈钢拉伸过程中的声-热像特征[J].材料科学与工程学报,2017,35(2). |
| |
| 作者姓名： | 欧阳浩 石健 张志魁 赵广慧 |
| |
| 作者单位： | 1. 西南石油大学机电工程学院,四川成都,610500;2. 中国石油集团工程设计有限责任公司华北分公司,河北任丘,062552 |
| |
| 基金项目： | 石油与天然气装备教育部重点实验室开放基金资助项目，国家自然科学基金资助项目 |
| |
| 摘 要： | 测量了含有Ⅰ型裂纹的SUS304不锈钢试样的单轴拉伸过程中的塑性变形和断裂。分析了裂纹尖端区域的塑性变形和断裂过程。结果表明:SUS304的各向异性在断裂阶段对声发射信号影响较大;红外热图像中的温度分布与塑性应变率有关;通过声发射参数和红外热图像可以从微观和宏观两方面分析裂纹尖端区域的塑性变形和断裂。
|
| 关 键 词： | 塑性变形 断裂 Ⅰ型裂纹 声发射 红外图像 |
AE and Thermographic Characteristics of SUS304 during Tensile Process |
| |
| OUYANG Hao,SHI Jian,ZHANG Zhikui,ZHAO Guanghui.AE and Thermographic Characteristics of SUS304 during Tensile Process[J].Journal of Materials Science and Engineering,2017,35(2). |
| |
| Authors: | OUYANG Hao SHI Jian ZHANG Zhikui ZHAO Guanghui |
| |
| Abstract: | Plastic deformation and fracture with Ⅰ-type crack of SUS304 specimens were measured by acoustic emission (AE),infrared thermography (TIR) and thermocouples during uniaxial tension process.Plastic deformation and fracture process around crack tip were discussed by AE parameters,TIR images and temperature distribution.The experimental results show that:the anisotropy of SUS304 has great influence on AE signals during fracture stage.The temperature distribution of TIR image is related to plastic strain rate.The plastic deformation and fracture of the crack tip region can be analyzed from microscopic and macroscopic aspects by acoustic emission parameters and infrared thermal image. |
| |
| Keywords: | plastic deformation fracture Ⅰ-type cracks acoustic emission TIR images |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
