孙培培,虞钢,王恒海,何秀丽,李少霞

• 1:中国科学院力学研究所先进制造工艺力学重点实验室
• 2:中国电子科技集团第十四研究所

摘要(Abstract)：

激光硬化层均匀性受光束空间强度分布和作用时间的影响。采用二元光学变换技术得到光束中心线强度比值为1∶2∶3、3∶2∶1和1∶1∶1的5×5点阵光斑,研究这三种强度分布光斑对Q235钢脉冲激光硬化后表面形貌、硬化层形状、硬度及耐磨性的影响。结果表明,激光光斑的空间强度分布对Q235钢硬化层均匀性影响很大,1∶2∶3强度分布光斑作用下的材料表面形貌、硬化层均匀性、硬度均匀度均优于1∶1∶1强度分布光斑。

关键词(KeyWords)： 脉冲激光;光束变换;激光强化;硬化层均匀性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金重点资助项目(10832011)

作者(Author): 孙培培,虞钢,王恒海,何秀丽,李少霞

DOI: 10.13289/j.issn.1009-6264.2011.02.021

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