| 超音速微粒轰击纳米化拉矫辊表面形貌与力学性能研究 |
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| 引用本文： | 梁永立,张宇军,张俊宝. 超音速微粒轰击纳米化拉矫辊表面形貌与力学性能研究[J]. 宝钢技术, 2011, 0(2): 38-41. DOI: 10.3969/j.issn.1008-0716.2011.02.008 |
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| 作者姓名： | 梁永立 张宇军 张俊宝 |
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| 作者单位： | 宝山钢铁股份有限公司研究院,上海,201900;宝山钢铁股份有限公司研究院,上海,201900;宝山钢铁股份有限公司研究院,上海,201900 |
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| 摘 要： | 采用超音速微粒轰击方法（USPP）对宝钢某机组拉矫辊进行了表面纳米化处理,利用扫描电镜（SEM）、粗糙度仪和显微硬度计对其表面形貌和力学性能进行了表征分析,结果表明,轰击后拉矫辊表面随机分布大量的冲击坑,表面粗糙度可在1.5-2.5之间调整;拉矫辊表层晶粒尺寸明显细化。纳米化处理后拉矫辊表层硬度可达到HV 920。工作气体温度和压力是影响酸洗拉矫辊表面粗糙度和显微硬度的主要因素。
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| 关 键 词： | 超音速微粒轰击 拉矫辊 粗糙度 显微硬度 |
Surface morphology and mechanical properties of nano-crystalline tensile-straightening rollers treated by the ultrasonic particulate peening |
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| LIANG Yongli,ZHANG Yujun,ZHANG Junbao. Surface morphology and mechanical properties of nano-crystalline tensile-straightening rollers treated by the ultrasonic particulate peening[J]. Baosteel Technology, 2011, 0(2): 38-41. DOI: 10.3969/j.issn.1008-0716.2011.02.008 |
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| Authors: | LIANG Yongli ZHANG Yujun ZHANG Junbao |
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| Affiliation: | LIANG Yongli,ZHANG Yujun and ZHANG Junbao(Research Institute,Baoshan Iron & Steel Co.,Ltd.,Shanghai 201900,China) |
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| Abstract: | Tensile-straightening rollers of a pickling line at Baosteel are surface nano-crystallined by the ultrasonic particulate peening(USPP) method.Surface morphology and mechanical properties of the rollers were characterized by scanning electronic microscope(SEM),a roughness meter and a microhardness tester.The results have indicated that there are a lot of randomly distributed impact pits on the surface after USPP and that surface roughness can be adjusted within a range of 1.5-2.5.The grain size in the surfac... |
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| Keywords: | ultrasonic particulate peening tensile-straightening roller roughness microhardness |
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