Three-dimensional characterization of an oxide scale on ATI 718Plus® superalloy

被引：6

作者：

Kruk, Adam ^{[1
,2
]}

Lech, Sebastian ^{[1
,2
]}

Gil, Aleksander ^{[3
]}

Cempura, Grzegorz ^{[1
,2
]}

Aguero, Alina ^{[4
]}

Wusatowska-Sarnek, Agnieszka M. ^{[5
]}

Czyrska-Filemonowicz, Aleksandra ^{[1
,2
]}

机构：

[1] AGH Univ Sci & Technol AGH UST, Int Ctr Electron Microscopy Mat Sci, Al Mickiewicza 30, Krakow 30059, Poland

[2] AGH Univ Sci & Technol AGH UST, Fac Met Engn & Ind Comp Sci, Al Mickiewicza 30, Krakow 30059, Poland

[3] AGH Univ Sci & Technol AGH UST, Fac Mat Sci & Ceram, Al Mickiewicza 30, Krakow 30059, Poland

[4] Inst Nacl Tecn Aeroespacial INTA, Dept Mat & Estruct, Torrejon De Ardoz, Spain

[5] Pratt & Whitney, 400 Main St, E Hartford, CT 06108 USA

来源：

CORROSION SCIENCE | 2020年 / 169卷 / 169期

基金：

欧盟地平线“2020”;

关键词：

Superalloys; SEM; TEM; STEM; High temperature corrosion; Internal oxidation; NI-BASED ALLOYS; DEGREES-C; ADVANCED STEELS; OXIDATION; GROWTH;

D O I：

10.1016/j.corsci.2020.108634

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The presented study was devoted to the characterization of a scale formed on the ATI 718Plus (R) superalloy. Novel complementary techniques were applied to precisely describe the structure, chemistry, morphology of the scale as well as the spatial distribution of phases formed during oxidation. The study revealed a discontinuous interlayer of the delta-Ni3Nb phase that had developed underneath the protective Cr2O3 scale. Al2O3 particles, which had precipitated predominantly at grain boundaries, and isolated chromia particles were present in the internal oxidation zone. Nanosized gamma phase precipitates enriched with Fe and Co were embedded into the scale.

引用

页数：12

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