Lanzhou University of Technology Institutional Repository (LUT_IR)
Forming Characteristics and Analysis of Nitrided Layers During the Laser Nitriding Titanium Alloy | |
Yao Xiaochun; Shi Yu; Li Tingqu; Li Wensheng | |
2019-12 | |
发表期刊 | RARE METAL MATERIALS AND ENGINEERING |
ISSN | 1002-185X |
卷号 | 48期号:12页码:4060-4067 |
摘要 | Ti-6Al-4V alloy was nitrided in nitrogen atmosphere using diode laser, in order to study the influence of line energy, laser power and scanning speed on the surface morphology, molten pool geometry, width, penetration depth and the forming coefficient of the nitrided layers. The surface and cross-section morphologies of the nitrided layers were taken by optical and scanning electron microscopy, and the hardness was measured by microhardness tester. The results show that the surface morphology are composed of the smooth and rough surface. When the surface temperature of the molten pool is low, increasing the interaction time has little effect on the surface morphology. With the increase of laser power under the same line energy, the melting depth and width of the nitrided layer increase, and the forming coefficient decreases. As the scanning speed decreases under the same laser power, the penetration depth and width increase, and the forming coefficient reduces. When the forming coefficient is very small, the nitrided layers will produce longitudinally distributed cracks. The convection form and the strength result in the formation of a hemispherical interface, a finger interface, a W-shaped interface and so on; besides, multiple inflections happen in the slope of the boundaries of molten pool. |
关键词 | laser nitriding titanium alloy surface morphology molten pool geometry forming coefficient |
URL | 查看原文 |
收录类别 | SCI ; SCIE |
语种 | 中文 |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
WOS记录号 | WOS:000504920800040 |
出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
EI入藏号 | 20200708172456 |
EI主题词 | Morphology |
EI分类号 | 537.1 Heat Treatment Processes - 541.1 Aluminum - 541.2 Aluminum Alloys - 542.3 Titanium and Alloys - 543.6 Vanadium and Alloys - 804.1 Organic Compounds - 951 Materials Science |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/56503 |
专题 | 省部共建有色金属先进加工与再利用国家重点实验室 材料科学与工程学院 |
通讯作者 | Shi Yu |
作者单位 | Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730000, Peoples R China |
第一作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室 |
通讯作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室 |
第一作者的第一单位 | 省部共建有色金属先进加工与再利用国家重点实验室 |
推荐引用方式 GB/T 7714 | Yao Xiaochun,Shi Yu,Li Tingqu,et al. Forming Characteristics and Analysis of Nitrided Layers During the Laser Nitriding Titanium Alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2019,48(12):4060-4067. |
APA | Yao Xiaochun,Shi Yu,Li Tingqu,&Li Wensheng.(2019).Forming Characteristics and Analysis of Nitrided Layers During the Laser Nitriding Titanium Alloy.RARE METAL MATERIALS AND ENGINEERING,48(12),4060-4067. |
MLA | Yao Xiaochun,et al."Forming Characteristics and Analysis of Nitrided Layers During the Laser Nitriding Titanium Alloy".RARE METAL MATERIALS AND ENGINEERING 48.12(2019):4060-4067. |
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