低塑性加工对定向凝固镍基合金DZ125高温氧化性能的影响

Wenbin Ma; Jingjing Guo; Hongyun Luo; Jun Tang; Xiaoguang Yang

doi:10.11896/cldb.19070220

低塑性加工对定向凝固镍基合金DZ125高温氧化性能的影响

Translated title of the contribution: Effect of Low Plastic Processing on High Temperature Oxidation Property of Directionally Solidified Nickel-based Superalloy DZ125

Wenbin Ma
, Jingjing Guo
, Hongyun Luo
, Jun Tang
, Xiaoguang Yang

Beihang University

Research output: Contribution to journal › Article › peer-review

Abstract

In this work, the low-plasticity burnishing (LPB) was employed to study the high temperature oxidation properties of the directionally solidified nickel-based superalloy DZ125. Microstructure analysis revealed that after the LPB process the microstructure of the surface layer changed from pristine columnar crystal to nanocrystalline, with an average grain size of about 10 nm. The surface oxide of LPB samples after high-tempe-rature oxidation at 950℃ was mainly alumina (Al₂O₃), which has better oxidation resistance than chromium oxide (Cr₂O₃). The oxide film obtained by LPB is relatively dense and uniform. Furthermore, analysis of the cross section of the specimen by EDS reveals that the LPB sample shows obvious internal-oxidation, with thicker oxide layer.

Translated title of the contribution	Effect of Low Plastic Processing on High Temperature Oxidation Property of Directionally Solidified Nickel-based Superalloy DZ125
Original language	Chinese (Traditional)
Pages (from-to)	10093-10097
Number of pages	5
Journal	Cailiao Daobao/Materials Reports
Volume	34
Issue number	5
DOIs	https://doi.org/10.11896/cldb.19070220
State	Published - 25 May 2020

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title = "低塑性加工对定向凝固镍基合金DZ125高温氧化性能的影响",

abstract = "In this work, the low-plasticity burnishing (LPB) was employed to study the high temperature oxidation properties of the directionally solidified nickel-based superalloy DZ125. Microstructure analysis revealed that after the LPB process the microstructure of the surface layer changed from pristine columnar crystal to nanocrystalline, with an average grain size of about 10 nm. The surface oxide of LPB samples after high-tempe-rature oxidation at 950℃ was mainly alumina (Al2O3), which has better oxidation resistance than chromium oxide (Cr2O3). The oxide film obtained by LPB is relatively dense and uniform. Furthermore, analysis of the cross section of the specimen by EDS reveals that the LPB sample shows obvious internal-oxidation, with thicker oxide layer.",

keywords = "DZ125, Directionally solidification, High-temperature oxidation, Low-plasticity burnishing (LPB), Nickel-based superalloy",

author = "Wenbin Ma and Jingjing Guo and Hongyun Luo and Jun Tang and Xiaoguang Yang",

year = "2020",

month = may,

day = "25",

doi = "10.11896/cldb.19070220",

language = "繁体中文",

volume = "34",

pages = "10093--10097",

journal = "Cailiao Daobao/Materials Reports",

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TY - JOUR

T1 - 低塑性加工对定向凝固镍基合金DZ125高温氧化性能的影响

AU - Ma, Wenbin

AU - Guo, Jingjing

AU - Luo, Hongyun

AU - Tang, Jun

AU - Yang, Xiaoguang

PY - 2020/5/25

Y1 - 2020/5/25

N2 - In this work, the low-plasticity burnishing (LPB) was employed to study the high temperature oxidation properties of the directionally solidified nickel-based superalloy DZ125. Microstructure analysis revealed that after the LPB process the microstructure of the surface layer changed from pristine columnar crystal to nanocrystalline, with an average grain size of about 10 nm. The surface oxide of LPB samples after high-tempe-rature oxidation at 950℃ was mainly alumina (Al2O3), which has better oxidation resistance than chromium oxide (Cr2O3). The oxide film obtained by LPB is relatively dense and uniform. Furthermore, analysis of the cross section of the specimen by EDS reveals that the LPB sample shows obvious internal-oxidation, with thicker oxide layer.

AB - In this work, the low-plasticity burnishing (LPB) was employed to study the high temperature oxidation properties of the directionally solidified nickel-based superalloy DZ125. Microstructure analysis revealed that after the LPB process the microstructure of the surface layer changed from pristine columnar crystal to nanocrystalline, with an average grain size of about 10 nm. The surface oxide of LPB samples after high-tempe-rature oxidation at 950℃ was mainly alumina (Al2O3), which has better oxidation resistance than chromium oxide (Cr2O3). The oxide film obtained by LPB is relatively dense and uniform. Furthermore, analysis of the cross section of the specimen by EDS reveals that the LPB sample shows obvious internal-oxidation, with thicker oxide layer.

KW - DZ125

KW - Directionally solidification

KW - High-temperature oxidation

KW - Low-plasticity burnishing (LPB)

KW - Nickel-based superalloy

UR - https://www.scopus.com/pages/publications/85086824903

U2 - 10.11896/cldb.19070220

DO - 10.11896/cldb.19070220

M3 - 文章

AN - SCOPUS:85086824903

SN - 1005-023X

VL - 34

SP - 10093

EP - 10097

JO - Cailiao Daobao/Materials Reports

JF - Cailiao Daobao/Materials Reports

IS - 5

ER -

低塑性加工对定向凝固镍基合金DZ125高温氧化性能的影响

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