摘要
利用大功率Nd:YAG激光对渗铝后的00Cr12合金钢进行了冲击强化处理,并在不同温度下对其进行了高温拉伸试验,从力学性能及断口形貌等分析了渗铝复合激光冲击对其高温拉伸性能的影响。结果表明,00Cr12合金钢渗铝后表面形成的铝化物涂层在高温拉伸过程中具有较高的热稳定性及抗氧化性能,表现出优异的热疲劳性能,而且激光冲击处理可以使渗铝层组织更加致密并且与基体结合更加紧密。
Aluminizing and laser shock processing（LSP） with high power Nd：YAG laser were carried out on 00Cr12 alloy steel and tensile experiment were tested at high temperature.Effects of aluminizing and laser shock processing on high temperature tensile properties were analyzed based on the mechanical test results and fracture morphologies.The results indicate that the aluminized coating formed on 00Cr12 steel surface has excellent thermal stability and oxidation resistance and shows outstanding thermal fatigue property.LSP on aluminized coating makes the layer structure more compact and increases the bonding strength between aluminized layer and substrate.
出处
《金属热处理》
CAS
CSCD
北大核心
2012年第2期92-95,共4页
Heat Treatment of Metals
基金
国家自然科学基金(50905080)
国家自然科学重点基金(50735001)
关键词
00Cr12合金钢
激光冲击
渗铝
力学性能
断口形貌
00Cr12 alloy steel
laser shock processing
aluminizing
mechanical properties
fracture morphology
