Interfacial Structure of M<sub>23</sub>C<sub>6</sub>/γ and VC/γ in GH36 Superalloys

Miao Bohe; Xie Xishan

doi:10.13374/j.issn1001-053x.1988.04.026

Volume 10 Issue 4

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Miao Bohe, Xie Xishan. Interfacial Structure of M23C6/γ and VC/γ in GH36 Superalloys[J]. Chinese Journal of Engineering, 1988, 10(4): 434-439. doi: 10.13374/j.issn1001-053x.1988.04.026

Citation:

Miao Bohe, Xie Xishan. Interfacial Structure of M₂₃C₆/γ and VC/γ in GH36 Superalloys[J]. Chinese Journal of Engineering, 1988, 10(4): 434-439. doi: 10.13374/j.issn1001-053x.1988.04.026

Miao Bohe, Xie Xishan. Interfacial Structure of M23C6/γ and VC/γ in GH36 Superalloys[J]. Chinese Journal of Engineering, 1988, 10(4): 434-439. doi: 10.13374/j.issn1001-053x.1988.04.026

Citation:

Miao Bohe, Xie Xishan. Interfacial Structure of M₂₃C₆/γ and VC/γ in GH36 Superalloys[J]. Chinese Journal of Engineering, 1988, 10(4): 434-439. doi: 10.13374/j.issn1001-053x.1988.04.026

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Interfacial Structure of M₂₃C₆/γ and VC/γ in GH36 Superalloys

doi: 10.13374/j.issn1001-053x.1988.04.026

Received Date: 1987-09-09
Available Online: 2021-11-15

Abstract

Abstract

A TEM study on the interfacial structure of M₂₃C₆/γ and VC/γ precipitated in GH36 superalloys was conducted. The misfit dislocation distribution has been clearly observed at the semi-coherent interfaces of M₂₃C₆/γ, a single array along the broadfaces at both sides with Burgers Vector a/2 <110>γ and spaced about 10 nm apart. It has been shown circular strain field constrast around the very fine dispersive VC particles of 3 to 12nm or so in size. In addition, strengthening mechanism of M₂₃C₆ and VC precipitated in GH36 superalloy, and how to identify the moire pattern or interfacial dislocations by TEM, were also discussed.
- superalloys,
- TEM,
- interface,
- mismatching,
- dislocation,
- moire pattern