| 王彦军,梁加宽,冀晓鹃,苗小峰,张思源,张鑫,章德铭,阴荫.火焰喷涂用 Al-6Si 丝材热处理工艺及涂层性能研究[J].热喷涂技术,2022,14(3):95~100. |
| 火焰喷涂用 Al-6Si 丝材热处理工艺及涂层性能研究 |
| Study on Heat Treatment Process and Coating Propertiesof Al-6Si Wire for Flame Spraying |
| |
| DOI：DOI 10.3969/j.issn.1674-7127.2022.03-011 |
| 中文关键词: Al-6Si 丝材 热处理 铝硅涂层 组织性能 |
| 英文关键词:Al-6Si wire Heat treatment Al-Si coatings Microstructure performance |
| 基金项目: |
|
| 摘要点击次数: 20 |
| 全文下载次数: 28 |
| 中文摘要: |
| 采用拉拔的方法制备了火焰喷涂用 Al-6Si 丝材， 研究了中间退火和成品退火温度对铝硅合金性能的影响，
并对铝硅合金丝材涂层性能进行研究， 对退火后铝硅合金坯料抗拉强度和伸长率进行测试， 对退火后的成品铝硅
合金丝金相组织进行了分析表征， 并对自制 Al-6Si 丝材和进口铝硅丝材 (Metco SF Aluminum) 涂层的孔隙率、 显
微硬度、 结合强度及热震性能进行分析比较。 结果表明， 铝硅合金坯料采用 450 ℃退火工艺显著改善了力学性能，
铝硅合金丝材经 400 ℃退火处理， 晶粒均匀。 采用自制 Al-6Si 丝材和进口铝硅丝材喷涂涂层孔隙率、 显微硬度、
结合强度及热震等性能基本相当， 满足封严涂层应用要求。 |
| 英文摘要: |
| The Al-6Si wire for flame spraying was prepared by drawing method. The effects of intermediate
annealing and finished product annealing temperature on the properties of Al-Si alloy were studied, and the
properties of Al-Si alloy wire coating were investigated. The tensile strength and elongation of Al-Si alloy blank
after annealing were tested. The metallographic structure of the finished Al-Si alloy wire after annealing was
analyzed and characterized. The porosity, microhardness, bonding strength and thermal shock properties of the
self-made Al-6Si wire and the imported Al-6Si wire (Metco SF Aluminum) were analyzed and compared. The
results showed that the mechanical properties of Al-Si alloy billet were significantly improved by annealing at 450
℃ , and the grain of Al Si alloy wire was uniform after annealing at 400 ℃ ; The porosity, microhardness, bonding
strength and thermal shock of the coating sprayed with self-made Al-6Si wire and imported Al-6Si wire were
basically equivalent, which meet the application requirements of sealing coatings. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |