铝硅渗层对DZ417G合金力学性能的影响  

Effect of Al-Si Diffusion Coating on Mechanical Properties of DZ417G Superalloy

作　　者：王蔓[1] 刘建平[2] 张凡云 王蕊[1] 

机构地区：[1]沈阳黎明航空发动机(集团)有限责任公司技术中心,辽宁沈阳110043 [2]中国人民解放军驻沈阳黎明公司军代表室,辽宁沈阳110043

出　　处：《热加工工艺》2013年第22期114-115,118,共3页Hot Working Technology

摘　　要：为了提高航空发动机用叶片的抗氧化、腐蚀性能,采用铝硅渗层防护,通过对带有铝硅渗层和没有铝硅渗层的DZ417G合金进行显微硬度、高温瞬时、高温持久及疲劳性能力学性能对比分析。结果表明:带有铝硅渗层的DZ417G合金高温持久性能高于没有铝硅渗层的DZ417G合金,高温瞬时性能相当,疲劳性能低于没有铝硅渗层的DZ417G合金。In order to improve the corrosion-and oxidant-resistant properties of aero engine blades, AI-Si diffusion coating was used widely. The effect of AI-Si diffusion coating was studied by microhardness test, high-temperature tensile test, high-temperature enduring test and fatigue crack test between DZA17G superaUoy samples with and without coating. The results indicate that the coated samples are better in high-temperature enduring properties, corresponding in high-temperature tensile properties, but worse in fatigue performance than the uncoated ones.

关 键 词：DZ417G合金 铝硅渗层 力学性能 

分 类 号：TG174[金属学及工艺—金属表面处理]