蔡颖辉,刘建明,黄凌峰,王帅,郭睿.CrAlY粒度对复合电沉积Ni-CrAlY涂层复合量的影响研究[J].表面技术,2022,51(9):206-216.
CAI Ying-hui,LIU Jian-ming,HUANG Ling-feng,WANG Shuai,GUO Rui.Effect of CrAlY Granularity on the Composite Amount of Composite Electrodeposited Ni-CrAlY Coating[J].Surface Technology,2022,51(9):206-216 |
| CrAlY粒度对复合电沉积Ni-CrAlY涂层复合量的影响研究 |
| Effect of CrAlY Granularity on the Composite Amount of Composite Electrodeposited Ni-CrAlY Coating |
| |
| DOI：10.16490/j.cnki.issn.1001-3660.2022.09.021 |
| 中文关键词: 粒径分布 复合量 电沉积 图像法 微粒停泊 |
| 英文关键词:particle size distribution composite amount electrodeposition image method particle parking |
| 基金项目:国家重点研发计划资助(2018YFB2002000) |
|
|
| Author | Institution |
| CAI Ying-hui | BGERIMM Technology Group, Beijing 100160, China |
| LIU Jian-ming | BGERIMM Technology Group, Beijing 100160, China;Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts, Beijing 102206, China |
| HUANG Ling-feng | BGERIMM Technology Group, Beijing 100160, China;Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts, Beijing 102206, China |
| WANG Shuai | BGERIMM Technology Group, Beijing 100160, China;Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts, Beijing 102206, China |
| GUO Rui | BGERIMM Technology Group, Beijing 100160, China;Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts, Beijing 102206, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 研究CrAlY粉末粒度对复合电沉积Ni-CrAlY涂层复合量的影响规律及机理，并探索利用图像软件精确测量涂层中CrAlY复合量的方法。方法 以10种不同粒度CrAlY粉末为原材料，采用复合电沉积技术制备Ni-CrAlY涂层。利用扫描电镜以及能谱仪等表征手段测量涂层中CrAlY颗粒的复合量，分析研究CrAlY激光粒度特征值与其复合量的关系。利用Adobe Photoshop软件研究图像处理方式对图像法表征涂层中CrAlY复合量准确度的影响。结果 CrAlY激光粒度D(90)和D(50)与其复合量有明显关联性，涂层中CrAlY的复合量随CrAlY粉末D(90)和D(50)的增加，呈现先升高、后降低的趋势，当CrAlY粉末D(90)在12.90~ 22.40 μm，D(50)在6.83~9.68 μm时，复合量较高，达到30.58%(质量分数)以上;当CrAlY粉末D(90)小于12.90 μm或大于22.4 μm，D(50)小于6.83 μm或大于9.68 μm时，CrAlY颗粒复合量出现了显著性下降，最低为27.42%。选择容差为33，消除图形锯齿，并进行灰度处理，可使用图像法较准确地测量出涂层中CrAlY的复合量，其测量偏差小于4.1%(体积分数)。结论 CrAlY粉末粒度对其在复合电沉积Ni-CrAlY涂层中的复合量有明显影响，CrAlY粉末过细或过粗均不利于其复合量的提高，需控制CrAlY在合适的粒度区间才能获得较高的复合量。颗粒最密嵌合机制、不同粒径颗粒受镀液冲击作用的不同、颗粒间互相碰撞作用以及“微粒停泊”机制的尺寸限制作用，4种作用的协同影响是造成CrAlY颗粒粒度与复合量出现该规律的主要原因。通过控制容差选取、锯齿处理、灰度处理等，可显著提高图像法测量CrAlY复合量的精度。 |
| 英文摘要: |
| Composite electrodeposition technology with non-line-of-sight and low energy consumption is promising in preparing Ni-CrAlY coatings. The composite amount of CrAlY particles is one of the most important parameters that determine the coating performance. This experiment studied the influence law and mechanism of CrAlY powder granularity on the composite amount of composite electrodeposited Ni-CrAlY coating, and explored the method to accurately measure the composite amount of CrAlY in the coating using image software. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501715号