Al-Si系铸造合金微观结构对疲劳寿命影响的研究进展

上海金属, 2009, 31(3): 49-53. doi: 10.3969/j.issn.1001-7208.2009.03.012

Al-Si系铸造合金微观结构对疲劳寿命影响的研究进展

向学渊 ^1, , 何国求 ^2, , 莫德锋 ^3, , 胡正飞 ^4, , 刘兵 ^5,

1.同济大学材料学院金属基材料研究所,上海市金属功能材料开发应用重点实验室,上海,200092

2.同济大学材料学院金属基材料研究所,上海市金属功能材料开发应用重点实验室,上海,200092

3.同济大学材料学院金属基材料研究所,上海市金属功能材料开发应用重点实验室,上海,200092

4.同济大学材料学院金属基材料研究所,上海市金属功能材料开发应用重点实验室,上海,200092

5.同济大学材料学院金属基材料研究所,上海市金属功能材料开发应用重点实验室,上海,200092

基金项目: 高等学校博士学科点专项科研基金(20050247002) 国家重点基础研究发展规划(973计划)(2007CB714700) 教育部新世纪优秀人才支持计划(NCET-05-0388)

关键词： Al-Si系铸造合金 , 疲劳寿命 , 微观组织 , 影响因素

EFFECT OF MICROSTRUCTURE ON AI-Si CASTING ALLOY IN FATIGUE LIFETIME PROGRESS

对影响Al-Si系铸造合金疲劳寿命的各种因素进行了概括总结,特别是对有重大影响的孔洞、氧化物薄膜、共晶硅颗粒、二次枝晶臂间距(SDAS)和裂纹闭合等影响因素作了详细讨论.指出了疲劳寿命随各因素的变化规律,对微观组织结构危害其疲劳寿命的相对大小进行了系统的分析和阐述.

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Al-Si系铸造合金微观结构对疲劳寿命影响的研究进展

EFFECT OF MICROSTRUCTURE ON AI-Si CASTING ALLOY IN FATIGUE LIFETIME PROGRESS

参考文献