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| 脉冲能量对激光冲击0Cr18Ni9奥氏体不锈钢组织与性能的影响 | |
| 引用本文： | 张凌峰,周合玉,熊毅,刘玉亮.脉冲能量对激光冲击0Cr18Ni9奥氏体不锈钢组织与性能的影响[J].河南科技大学学报(自然科学版),2009,30(3). |
| 作者姓名： | 张凌峰 周合玉 熊毅 刘玉亮 |
| 作者单位： | 1. 河南科技大学,材料科学与工程学院,河南,洛阳,471003;河南科技大学,河南省有色金属材料科学与加工技术重点实验室,河南,洛阳,471003 2. 河南科技大学,材料科学与工程学院,河南,洛阳,471003 3. 河南科技大学,河南省有色金属材料科学与加工技术重点实验室,河南,洛阳,471003 |
| 基金项目： | 国家自然科学基金青年基金 |
| 摘 要： | 使用高功率激光器在水约束条件下对0Cr18Ni9奥氏体不锈钢进行了冲击试验,通过研究冲击加载下奥氏体的组织与性能变化特征,得出了下述主要结果:0Cr18Ni9奥氏体不锈钢在室温条件下通过不同激光功率的冲击,出现加工硬化现象,且功率越高,变形量越大,加工硬化也越明显.15 J能量和25 J能量冲击时,材料的微观组织以孪晶为主;42 J 能量冲击时,奥氏体出现相变特征,发生类马氏体相变.随着冲击功率的提高,孪晶逐渐细化,并在42 J能量下出现明显的孪晶与位错的交互作用,孪晶界上有大量的位错团塞积. |
| 关 键 词： | 奥氏体不锈钢 激光冲击 马氏体相变 孪晶 位错 |
Effect of Different Pulse Energy on Microstructure and Properties of 0Cr18Ni9 Austenitic Stainless Steel by Laser Shock Processing |
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| ZHANG Ling-Feng,ZHOU He-Yu,XIONG Yi,LIU Yu-Liang.Effect of Different Pulse Energy on Microstructure and Properties of 0Cr18Ni9 Austenitic Stainless Steel by Laser Shock Processing[J].Journal of Henan University of Science & Technology:Natural Science,2009,30(3). | |
| Authors: | ZHANG Ling-Feng ZHOU He-Yu XIONG Yi LIU Yu-Liang |
| Institution: | a.Materials Science & Engineering College;b.Henan Key Laboratory of Advanced Nonferrous Metals;Henan University of Science & Technology;Luoyang 471003;China |
| Abstract: | Impact test was carried out on the austenitic stainless steel 0Cr18Ni9 under the water confinement.By studying the change of the structure and performance,the main results show that the work-hardening by laser shock processing had emerged.The higher the power,the greater the deformation,work hardening was also more obvious.The main characteristic was twinned structure with the impact of energy 15 J and 25 J,and phase transformation occurred under 42 J energy shock.When the laser energy was increased to 42 J... |
| Keywords: | Austenitic stainless steel Laser shock processing Martensitoid phase transformation Twinned Dislocation |
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