| GH3039脉冲激光焊接头组织性能研究 |
| |
| 引用本文： | 刘丰刚,成军,潘海莎,郑刚亮. GH3039脉冲激光焊接头组织性能研究[J]. 兵器材料科学与工程, 2010, 33(3): 64-66. DOI: 10.3969/j.issn.1004-244X.2010.03.020 |
| |
| 作者姓名： | 刘丰刚 成军 潘海莎 郑刚亮 |
| |
| 作者单位： | 西安理工大学,材料科学与工程学院,陕西,西安,710048;西安理工大学,材料科学与工程学院,陕西,西安,710048;西安理工大学,材料科学与工程学院,陕西,西安,710048;西安理工大学,材料科学与工程学院,陕西,西安,710048 |
| |
| 摘 要： | 采用脉冲激光焊接工艺对GH3039镍基高温合金进行实验研究。焊接工艺参数选择适当时,可以获得较好的焊接接头。试验接头参数为:工作电流240 A,脉宽6 ms,频率14 Hz,焊接速度105 mm/min,离焦量3 mm,气流量3 L/min。通过硬度测定,金相观察,拉伸试验对焊缝组织和形貌进行观察和分析。结果表明,焊缝组织主要为奥氏体基体,中心区域为细小的等轴晶,边缘为柱状晶,焊缝中心的硬度高于母材硬度,焊缝组织中的层状形貌是由脉冲激光间断作用形成。
|
| 关 键 词： | 镍基高温合金 激光焊 焊接接头 显微组织 |
Microstructure and properties of the pulse laser welded joint of GH3039 |
| |
| LIU Fenggang,CHENG Jun,PAN Haisha,ZHENG Gangliang. Microstructure and properties of the pulse laser welded joint of GH3039[J]. Ordnance Material Science and Engineering, 2010, 33(3): 64-66. DOI: 10.3969/j.issn.1004-244X.2010.03.020 |
| |
| Authors: | LIU Fenggang CHENG Jun PAN Haisha ZHENG Gangliang |
| |
| Abstract: | The GH3039 nickel-based superalloy was experimentally studied by pulse laser welding process.Good welded joints can be obtained by using appropriate processing parameters.The parameters are:working current I=240 A,pulse width w=6 ms,frequency f=14 Hz,welding speed v=105 mm/min,defocusing distance F=3 mm,air flow h=3 L/min.The microstructures were observed by optical microscopy and the properties were analyzed by tensile test,hardness measurement.The results show that the microstructure of the welded joint m... |
| |
| Keywords: | nickel-based superalloy laser welding joints microstructure |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
