为了解元素钨含量对新型钴-铝-钨合金中γ′强化相的影响,用燃烧合成法制备了不同钨含量的合金,通过SEM、XRD、EPMA、DSC等方法分析了钨含量对合金中γ′强化相形貌、数量以及稳定性的影响.结果表明:钴-铝-钨合金显微组织是由富钴基体及其γ′-Co3(Al,W)强化相和少量碳化物组成;γ′-Co3(Al,W)强化相比Co3Al具有更好的稳定性,随着钨含量的增加,合金的液相线温度升高,强化相的数量也增加;当钨质量分数为26.36%时合金中γ′强化相的稳定性最好.
所属栏目
新材料 新工艺
收稿日期
2009/2/62009/8/17
作者单位
徐仰涛:兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,有色金属合金及加工教育部重点实验室, 兰州 730050
夏天东:兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,有色金属合金及加工教育部重点实验室, 兰州 730050
备注
徐仰涛(1978-),男,甘肃兰州人,讲师,博士研究生.
引用该论文:
XU Yang-tao,XIA Tian-dong.Effect of Tungsten Content on γ′ Strengthening Phase in Co-Al-W Alloy[J].Materials for mechancial engineering,2010,34(2):63～66
徐仰涛,夏天东.钨含量对钴-铝-钨合金中γ′强化相的影响[J].机械工程材料,2010,34(2):63～66
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