| 汽车排气歧管用球墨铸铁的显微组织和抗生长性 |
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| 引用本文： | 杨云龙,于海侠,曹占义. 汽车排气歧管用球墨铸铁的显微组织和抗生长性[J]. 钢铁研究学报, 2014, 26(11): 51-54. DOI: 10.13228/j.boyuan.issn1001-0963.20140002 |
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| 作者姓名： | 杨云龙 于海侠 曹占义 |
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| 作者单位： | 吉林工业职业技术学院化工机械系;吉林大学材料科学与工程学院 |
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| 基金项目： | 吉林省科技发展计划项目(20086008) |
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| 摘 要： | 通过LOM、XRD、SEM和EDS等手段分析了汽车排气歧管材料的组织构成。高温工作后两种材料尺寸的变化随工作温度的升高逐渐增大,但高硅钼球墨铸铁的尺寸增幅明显大于高镍球墨铸铁的增幅。由于镍和锰能有效提高球墨铸铁的抗氧化性和相变温度,所以高镍球墨铸铁的抗生长性优于高硅钼球墨铸铁的抗生长性。
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| 关 键 词： | 高硅钼球墨铸铁 高镍球墨铸铁 抗生长性 |
Microstructures and Growth Resistances of Ductile Cast Irons for Exhaust Manifold |
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| YANG Yun-long,YU Hai-xia,CAO Zhan-yi. Microstructures and Growth Resistances of Ductile Cast Irons for Exhaust Manifold[J]. Journal of Iron and Steel Research, 2014, 26(11): 51-54. DOI: 10.13228/j.boyuan.issn1001-0963.20140002 |
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| Authors: | YANG Yun-long YU Hai-xia CAO Zhan-yi |
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| Affiliation: | 1. Department of Chemical and Mechanical Engineering, Jilin Vocational College of Industry and Technology,Jilin 132013, Jilin, China ;2. Department of Materials Science and Engineering, Jilin University,Changchun 130025, Jilin, China |
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| Abstract: | The Microstructures of materials for exhaust manifold were investigated by LOM,XRD,SEM and EDS. The results show that after working at high temperature, the changes of sizes of both high Si-Mo DCI (ductile cast iron) and high Ni DCI increase with increase of working temperature, but the change of high Ni DCI is less than that of high Si-Mo DCI. Because Ni and Mn can enhance oxidation resistance and phase transformation temperature of DCI, growth resistance of high Ni DCI is better than that of high Si-Mo DCI. |
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| Keywords: | high Si-Mo ductile cast iron ductile Ni-resist cast iron growth resistance |
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