随流孕育对WD615飞轮金相组织和断面敏感性的影响.pdfVIP

维普资讯 学兔兔 Jan．2008 铸 造 Vo1．57 N0．1 FOUNDRY · 73 · 随流孕育对WD61 5飞轮金相组织和 断面敏感性的影响 乔进国 ，郝延宏 ，王晓林 ，张 杰 ，张敏之 ，许景峰 (1．潍柴动力股份有限公司铸锻厂，山东潍坊261001；2．潍坊学院物理与电子科学系，山东潍坊261061) 摘要：利用金相显微镜、布氏硬度计分析了随流孕育处理对WD615~ 组织和断面敏感性的影响。结果表明，飞 轮采用0．10％的si．zr随流孕育处理，能够消除D型石墨和碳化物，获得均匀分布的A型片状石墨，并改善了其断面敏感 性。用si．zr孕育剂进行随流孕育处理在WD615飞轮生产中取得了良好的效果。 关键词：随流孕育；石墨；断面敏感性；飞轮 中图分类号：TG253 文献标识码：A 文章编号：1001-4977(2008)01—0073—03 Influence of lnstant Stream lnoculation On MicrostructUre and Section Sensitivity Of W D6 1 5 Flywheel QIAO Jin-guo’，HAO Yan-hong’，WANG Xiao-lin。，ZHANG jie’，ZHANG Min-zhi’，XU Jing-feng’ (1．FoundryForging Plant，Weichai Power Co．，Ltd．，Weifang 261 001，Shandong，China；2．Physics and Electronic Scientific Department，Weifang University，Weifang 261 061，Shandong，China) Abstract： The effects of instant stream inoculation process on the microstructure and section sensitivity of WD61 5 flywheel were investigated by using metallurgical microscope and Brinell hardness tester．The results showed that D type graphite and carbide of the flyw heel were eliminated and A type flake shape graphite evenly distributes on the matrix with instant stream inoculation of 0．1 0％Si．Zr inoculant．and the section sensitivity and microstructure uniformity were also improved．Better result has been obtained by applying instant stream inoculation process in the production of WD61 5 flyw hee1． ． Key words：instant steam inoculati