殷建锋,冯新,李佳,等.某ZTA15钛合金零件铸造表面质量异常分析[J].精密成形工程,2018,10(3):93-98.
YIN Jian-feng,FENG Xin,LI Jia,et al.Surface Quality Abnormality of a ZTA15 Titanium Alloy Part[J].Journal of Netshape Forming Engineering,2018,10(3):93-98. |
| 某ZTA15钛合金零件铸造表面质量异常分析 |
| Surface Quality Abnormality of a ZTA15 Titanium Alloy Part |
| 投稿时间：2018-04-20 修订日期：2018-05-10 |
| DOI：10.3969/j.issn.1674-6457.2018.03.017 |
| 中文关键词: 钛合金 表面 棕刚玉 碳黑 |
| 英文关键词: titanium alloy surface brown alumina carbon black |
| 基金项目: |
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| 中文摘要: |
| 目的 以铸造表面存在黑色斑点的某ZTA15钛合金零件为研究对象，研究零件铸造表面外来物质的成分、结合方式及其形成原因。方法 利用扫描电子显微镜对零件铸造表面及截面形貌进行观察，利用能谱分析仪对零件铸造表面及截面成分进行分析。结果 零件铸造表面主要存在棕刚玉颗粒和碳黑颗粒两种外来物质，棕刚玉颗粒嵌入铸件基体，碳黑颗粒附着于铸造表面。结论 零件铸造表面黑色斑点是碳黑颗粒显示，附着于铸造表面的碳黑颗粒对零件表面质量及镀层质量有影响，碳黑颗粒产生于零件表面油污清洗不洁净真空热处理后析出，热处理前采用超声波清洗+冷水洗+热水洗+吹干的方法清洁零件，可改善零件热处理后的表面质量。 |
| 英文摘要: |
| A ZTA15 titanium alloy part with black spots on the casting surface were used as the research objects to study composition, combination form and forming reasons of foreign substances on the surface of the part. The morphology of the surface and cross section of the part were observed with a scanning electron microscope. The component of the surface and cross section of the part were analyzed with an energy spectrum analyzer. The results show that there were mainly two kinds of foreign substances on the casting surface, including brown corundum particles and carbon black particles. The brown corundum particles were embedded on the casting surface. The carbon black particles were attached to the casting surface. The black spots on the surface of the parts were the color displayed by the carbon black particles, and the carbon black particles attached to the casting surface of the part have an effect on the surface quality and the quality of the coating. The carbon black particles are precipitated after vacuum heat treatment with unclean cleaning of oil pollution on the casting surface of the part. The cleaning method of ultrasonic cleaning + cold water wash + hot water wash + blow dry before heat treatment can improve the surface quality of parts after heat treatment. |
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