| PMO对GCr15轴承钢矩形坯心部微观组织及元素分布的影响 |
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| 引用本文： | 刘海宁,李辉成,李涛,徐旋旋,陈廷军,徐智帅. PMO对GCr15轴承钢矩形坯心部微观组织及元素分布的影响[J]. 铸造, 2022, 0(2): 164-170 |
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| 作者姓名： | 刘海宁 李辉成 李涛 徐旋旋 陈廷军 徐智帅 |
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| 作者单位： | 上海大学先进凝固技术中心;常州中天钢铁集团有限公司 |
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| 基金项目： | 国家重点研发计划,低缺陷低偏析铸造成形加工工艺优化(2017YFB0701802);国家自然科学青年基金(51904182)。 |
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| 摘 要： | 为了改善220 mm×260 mm矩形GCr15轴承钢铸坯心部组织,提高元素分布均匀性,以稳定轴承产品质量,在凝固过程中利用脉冲磁致振荡(简称PMO)技术对铸坯进行处理.取样检测结果表明,相比未经过PMO技术处理的铸坯(对比坯),PMO处理坯的中心缩孔明显减小,凝固组织的初生相占比波动显著降低,C、Cr、Mn、Si元素...
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| 关 键 词： | PMO GCr15轴承钢 凝固组织 元素分布 |
Effect of PMO on the Microstructure and Element Distribution in the Core of GCr15 Bearing Steel Rectangular Billet |
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| LIU Hai-ning,LI Hui-cheng,LI Tao,XU Xuan-xuan,CHEN Ting-jun,XU Zhi-shuai. Effect of PMO on the Microstructure and Element Distribution in the Core of GCr15 Bearing Steel Rectangular Billet[J]. China Foundry, 2022, 0(2): 164-170 |
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| Authors: | LIU Hai-ning LI Hui-cheng LI Tao XU Xuan-xuan CHEN Ting-jun XU Zhi-shuai |
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| Affiliation: | (Center for Advanced Solidification Technology,Shanghai University,Shanghai 200444,China;Zenith Steel Group Company Limited,Changzhou 213011,Jiangsu,China) |
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| Abstract: | In order to improve the core microstructure quality of the 220 mm×260 mm GCr15 bearing steel rectangular cast billet,improve the uniformity of the element distribution,and stabilize the quality of the bearing product,the cast billet was processed by pulse magneto-oscillation(PMO)technology during the solidification process.Sampling test results showed that compared to the cast billet(comparative billet)that has not been processed by the PMO technology,the central shrinkage of the PMO-treated billet was significantly reduced,and the fluctuation of the proportion of the primary phase of the solidification microstructure was significantly reduced,and the two-dimensional distributions of C,Cr,Mn and Si elements were more uniform. |
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| Keywords: | PMO GCr15 bearing steel solidification microstructure element distribution |
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