高温合金渗Al-Si层的微观组织分析

1.大连理工大学,材料工程系,辽宁,大连,116024

2.大连理工大学,材料工程系,辽宁,大连,116024

3.大连理工大学,材料工程系,辽宁,大连,116024

4.沈阳黎明航空发动机集团公司,沈阳,110043

5.沈阳黎明航空发动机集团公司,沈阳,110043

Study on the Microstructure of an Al-Si Coating on a Nickel-Base Superalloy K4104

利用SEM,XRD和EPMA详细分析K4104镍基高温合金料浆渗Al-Si的微观结构.结果表明,表层主要为富Al的β-NiAl+CrxSiy化合物,过渡层主要为富Ni的β-NiAl相,内扩散层主要为β-NiAl相+富Cr相+γ'-Ni3Al相+Ni固溶体.

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