Microstructure of NiCr-Cr<sub>3</sub>C<sub>2</sub> Composite Cladding Layer on Nickel-based Single Crystal Superalloy

Wang De; Xie Yujiang; Zhang Youliang; Wang Mingsheng; Fu Yuan; Guo Wei

doi:10.15980/j.tzzz.2016.05.028

Views : 0 下载量: 115 CSCD: 3

Export
Share
Collection
Album

Microstructure of NiCr-Cr₃C₂ Composite Cladding Layer on Nickel-based Single Crystal Superalloy
Vol. 36, Issue 5, Pages: 544-547(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.05.028

扫描看全文

[1]王德,谢玉江,张友亮,王明生,付远,郭炜.单晶高温合金NiCr-Cr_3C_2熔覆层的微观组织[J].特种铸造及有色合金,2016,36(05):544-547.

Wang De, Xie Yujiang, Zhang Youliang, et al. Microstructure of NiCr-Cr₃C₂ Composite Cladding Layer on Nickel-based Single Crystal Superalloy. [J]. Special Casting & Nonferrous Alloys 36(5):544-547(2016)
[1]王德,谢玉江,张友亮,王明生,付远,郭炜.单晶高温合金NiCr-Cr_3C_2熔覆层的微观组织[J].特种铸造及有色合金,2016,36(05):544-547. DOI： 10.15980/j.tzzz.2016.05.028.

Wang De, Xie Yujiang, Zhang Youliang, et al. Microstructure of NiCr-Cr₃C₂ Composite Cladding Layer on Nickel-based Single Crystal Superalloy. [J]. Special Casting & Nonferrous Alloys 36(5):544-547(2016) DOI： 10.15980/j.tzzz.2016.05.028.

摘要

采用真空粉末熔覆工艺在镍基单晶高温合金表面制备了致密的NiCr-Cr

熔覆涂层

并采用SEM/EDS

XRD

EPMA等手段分析了熔覆层及界面的微观组织。结果表明

真空粉末熔覆层中主要由Ni

γ-Ni

γ′-Ni

Al及γ+γ′共晶组织组成

熔覆层显微硬度是基体硬度的2

倍。界面处附近由于元素互扩散

在靠近熔覆层侧生成了大量的MC型碳化物;而在靠近基体侧

由于枝晶轴与枝晶间组织与成分差异

析出了形态各异的碳化物

并分析了"十字花状"碳化物的演变过程。

Abstract

Compact NiCr-Cr

composite cladding layer was prepared on nickel-based single crystal superalloy by vacuum powder brazing technology.The microstructure of the cladding layer and the interface was observed by OM

SEM/EDS

XRD

EPMA.The results reveal that the cladding layer is composed of Ni

γ-Ni

γ′-Ni

Al andγ+γ′eutectic

and microhardness of the cladding layer is1

times higher than that of the substrate.As a result of the interdiffusion

a large amount of MCtype carbides are precipitated from the cladding layer side at the interface

while on the substrate side

plenty of carbides with various morphologies are precipitated due to the differences of structure and composition between interdendrite regions and dendrite cores.In addition

the evolution mechanism of"cruciate flower"carbide was described.

关键词

镍基单晶高温合金真空粉末熔覆NiCr-Cr3C2熔覆层

Keywords

Nickel-Based Single Crystal SuperalloyVacuum Powder BrazingNiCr-Cr3C2Cladding Layer

references

Alert me when the article has been cited

提交

Research Progress in Influence of Deviation from ［001］ Orientation Angle on Creep Behavior of Nickel-based Single Crystal Superalloys

Microstructure of NiCr-Cr3C2 Composite Cladding Layer on Nickel-based Single Crystal Superalloy

DOI： 10.15980/j.tzzz.2016.05.028

摘要

Abstract

关键词

Keywords

references

Microstructure of NiCr-Cr₃C₂ Composite Cladding Layer on Nickel-based Single Crystal Superalloy