30CrMnSiNi2A钢连续激光辐照性能变化的微观形貌结构分析

来源 :2014中国功能材料科技与产业高层论坛 | 被引量 : 0次 | 上传用户:sdausunyu
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  以14.5W/cm2的连续激光辐照30CrMnSiNi2A钢,通过改变激光辐照时间、辐照次数和样品所处环境,获得合金试样的温升历程.用X-射线衍射、扫描电子显微镜、能谱仪和纳米压痕等手段对样品的微观形貌和性能进行表征,发现样品断口均具有氧化膜-脆硬层-基体三层结构特点,脆硬层硬度高于基体,韧性低于基体.
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