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1. 江苏师范大学 机电工程学院,江苏 徐州,221116
2. 江苏建筑职业技术学院 机电学院,江苏 徐州,221116
收稿日期:2016-05-31,
修回日期:2016-06-12,
纸质出版日期:2016-11-14
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范晖, 赵阳培, 王善奎. 射流电沉积涂层激光重熔的力学性能强化[J]. 光学精密工程, 2016,24(10s): 117-122
FAN Hui, ZHAO Yang-pei, WANG Shan-kui. Mechanical properties enhancement of laser remelting for jet electro-deposited coating[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 117-122
范晖, 赵阳培, 王善奎. 射流电沉积涂层激光重熔的力学性能强化[J]. 光学精密工程, 2016,24(10s): 117-122 DOI: 10.3788/OPE.20162413.0117.
FAN Hui, ZHAO Yang-pei, WANG Shan-kui. Mechanical properties enhancement of laser remelting for jet electro-deposited coating[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 117-122 DOI: 10.3788/OPE.20162413.0117.
为了提高射流电沉积层的力学性能,研究了激光重熔对射流电沉积沉积层性能的影响,优化了相关工艺参数。采用射流电沉积方法在304不锈钢表面制备纳米结构铜沉积层后开展激光重熔工艺。采用扫描电镜和X射线衍射仪观察涂层表面形貌和晶粒尺寸,并对涂层进行了力学性能测试。测试结果表明:在优化的工艺参数下(电流密度为200 A/dm
2
,扫描速度为10 mm/s),射流电沉积制备铜沉积层表面较平整,微观结构较致密,由尺寸为60 nm的纳米晶颗粒组成。激光重熔后显微硬度、抗拉强度等力学性能都得到明显提高。显微硬度可以达到816 HV,抗拉强度可以达到590 MPa。通过拉伸断口形貌观察表明激光重熔后材料塑性会降低,因此激光重熔相关参数有将进一步的优化。
In order to improve mechanical properties of the jet flow electro-deposition coating
the impact of laser remelting on performance of the jet flow electro-deposition coating was studied for process parameter optimization. The laser remelting process were realized after preparing the nano-structure copper deposition layer in the 304 stainless steel surface by the jet flow electro-deposition method. Thereafter the coating surface morphology and grain size were observed with Scanning Electron Microscope (SEM) and X-ray Diffraction (XRD)
and the mechanical properties of the coating was tested. The results show that under the optimized process parameters where the operating current density is 200 A/dm
2
and the scanning speed is 10 mm/s
the surface of the copper deposition layer prepared by the jet flow electro-deposition method is relatively smooth and composed of 60 nm grains
with relatively compact microstructure. The mechanical properties including the micro-hardness and tensile strength are obviously improved after laser remelting
where the micro-hardness can reach 816 HV and the tensile strength can reach 590 MPa. Otherwise the plasticity decreases according to the tensile fracture morphology
which means the process parameters should be further optimized.
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兰龙, 谭俊, 吴迪. 喷射电沉Ni及Ni-ZrO2复合镀层的表面形貌和硬度[J]. 材料导报, 2014,28(8):111-115. LAN L, TAN J, WU D.Surface morphology and hardness of Ni and Ni-ZrO2 composite coatings prepared by jet electrodeposition[J]. Materials Review, 2014,28(8):111-115. (in Chinese)
赵阳培, 黄因慧, 赵剑锋. 射流电铸快速成型基础试验研究[J]. 南京航空航天大学学报, 2004, 36(4):458-461. ZHAO Y P, HUANG Y H, ZHAO J H. Fundamental experiment of jet electroforming oriented by rapid prototyping[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2004,36(4):458-461. (in Chinese)
兰龙, 谭俊, 杜军. 超声波辅助选择性电沉积技术研究进展[J]. 中国机械工程, 2015, 26(9):1261-1270. LAN L, TAN J, DU J.Review of ultrasonic assisted selective electrodeposition[J]. Chinese Journal of Mechanical Engineering, 2015, 26(9):1261-1270. (in Chinese)
李慧芳, 魏英慧, 胡兰清. 金属材料表面激光热处理的研究与应用[J]. 太原理工大学学报, 2002, 33(2):142-146. LI H F, WEI Y H. HU L Q. Research and application of laser heat treatment in metallic materials surface[J]. Journal of Taiyuan University of Technology, 2002, 33(2):142-146. (in Chinese)
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贾卫平,姚井龙,吴蒙华. 激光重熔参数对镍基纳米TiN复合电沉积镀层性能的影响[J]. 表面技术, 2015, 45(3):78-83. JIA W P, YAO J L, WU M H. Effect of laser remelting parameters on properties of Nickel-based nano TiN composite deposition coatings[J]. Surface Engineering, 2015, 45(3):78-83. (in Chinese)
DU L Q, LI Y, LIU J F. Influence of current density on the interfacial bond strength of electroformed layers[J]. Micro and Nano Letters., 2012,7(5):402-406.
杜立群,鲍其雷,赵明. 在金属基底上制作高深宽比金属微光栅的方法[J]. 光学精密工程,2015,23(3):700-707. DU L Q, BAO Q L,ZHAO M.Fabrication of metal micro-grating with high aspect ratio on metal substrate[J]. Opt. Precision Eng., 2015, 23(3):700-707. (in Chinese)
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李红英. 金属拉伸试样的断口分析[J]. 山西大同大学学报, 2011, 27(1):76-79. LI H Y. Fracture analysis of the metal tensile specimen[J]. Journal of Shanxi Datong University, 2011, 27(1):76-79. (In Chinese)
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