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浏览/检索结果: 共8条，第1-8条 帮助

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激光诱导击穿光谱表征熔覆层缺陷程度 期刊论文  OAI收割
中国激光, 2020, 卷号: 47
-
  |  收藏  |  浏览/下载：23/0  |  提交时间：2020/10/26
Densification of C/SiC composite surface by the hybrid process of laser cladding and subsequent heat treatment 期刊论文  OAI收割
CERAMICS INTERNATIONAL, 2019, 卷号: 45, 期号: 6, 页码: 7703
作者:  Ma, Ning-ning;  Chen, Jian;  Huang, Zheng-ren;  Liu, Xue-jian;  Chen, Zhong-ming
  |  收藏  |  浏览/下载：50/0  |  提交时间：2019/12/26
The Effects of Femtosecond Laser Processing on the Surface Accuracy of Fibre Laser Clad Sidewalls 期刊论文  OAI收割
lasers in engineering, 2016, 卷号: 35, 期号: 5-6, 页码: 239-247
作者:  Li, R.;  Yang, X-J.;  Zhao, W.;  He, B.;  Zhao, H-L.
收藏  |  浏览/下载：50/0  |  提交时间：2016/11/30
Laser cladding of ZM5 magnesium base alloy with Al+nano-SiC powder 期刊论文  OAI收割
Lasers in Engineering, 2008, 卷号: 18, 期号: 1-2, 页码: 85-94
C. J. Chen; M. Zhang; Q. M. Chang; S. C. Zhang; H. Y. Ma; W. Q. Yan; M. Wang
收藏  |  浏览/下载：28/0  |  提交时间：2012/04/13
Effect of a small increase in the Ni content on the properties of a laser surface clad Fe-based alloy 期刊论文  OAI收割
Applied Surface Science, 2007, 卷号: 253, 期号: 9, 页码: 4420-4426
X. Y. Yang; X. A. Peng; J. Chen; F. H. Wang
收藏  |  浏览/下载：24/0  |  提交时间：2012/04/13
Optical fiber transmission of Q-switdied Nd:YAG pulses of 10MW peak power: Mechanism of damage to the fiber (EI CONFERENCE) 会议论文  OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies, November 2, 2005 - November 5, 2005, Xian, China
作者:  Wang L.;  Zhang Y.;  Chen W.;  Tang Y.;  Wang L.
收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25
This paper presents theoretical analysis and experiment results of four different fibers transmitting 10MW peak power Nd: YAG laser pulse. The main factors limiting to optical fiber transmission of high power laser pulse is pointed  including air breakdown at focus area and surface damage of optical fiber. The theory of air breakdown and the fiber coupling conditions is described briefly. The results of study to the transmission properties and damage conditions are presented on the basis of four different types of optical fibers. The results of the experiments are further analyzed in the aspects of transmitting efficiency  air breakdown and surface damage. The local and foreign optical fibers  with plastic-cladding and silica-cladding  and step- index and graded- index fibers are tested separately in the experiments. The experiments showed that the imported fibers are able to transmit up to 10MW peak power laser pulse with no any visible damage  while energy density at the fiber output end surface is 3.54GW/cm2. For local fibers  damage on the input surface of both plastic-cladding and silica-cladding  step-index fibers was found obviously. The column damage to the graded index fiber was also found and investigated in the research. Damage mechanisms of fiber at high peak power laser pulses are summarized. High quality finishing of fiber end surface will improve damage threshold tremendously. The conclusion of the study is that transmitting Q-switched Nd:YAG pulses of 10MW peak power is feasible for the domestically made fibers if their end surfaces are properly processed.  
Nonequilibrium microstructures and their evolution in a Fe-Cr-W-Ni-C laser clad coating 期刊论文  OAI收割
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 卷号: 270, 页码: 183-189
作者:  Wu, XL;  Chen, GN
  |  收藏  |  浏览/下载：16/0  |  提交时间：2018/05/31
金属材料的激光表面改性及其在摩擦学中的应用 期刊论文  OAI收割
固体润滑, 1990, 卷号: 10, 期号: 3, 页码: 153-159
杨德华; 张绪寿
收藏  |  浏览/下载：36/0  |  提交时间：2014/09/10