Reductions of Intergranular Corrosion Resistance and Wear Resistance in a Ni-Cr-Mo-Based Superalloy by Aging-Treatment-Induced Precipitation
Ni-Cr-Mo-based superalloy is widely used as a key component in many critical environments. To ensure that the manufacturing process does not impact the long-term service performance of these components, the aging precipitation behavior at different temperatures and its effect on intergranular corros...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-08-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/11/8/1329 |
| _version_ | 1797522849445969920 |
|---|---|
| author | Pengyan Zhang Chi Zhang Xiaoguang Zhou Zhenyi Huang |
| author_facet | Pengyan Zhang Chi Zhang Xiaoguang Zhou Zhenyi Huang |
| author_sort | Pengyan Zhang |
| collection | DOAJ |
| description | Ni-Cr-Mo-based superalloy is widely used as a key component in many critical environments. To ensure that the manufacturing process does not impact the long-term service performance of these components, the aging precipitation behavior at different temperatures and its effect on intergranular corrosion (IGC) resistance and wear resistance of a Ni-Cr-Mo-based C276 superalloy were investigated. The equilibrium phase diagram was calculated first using thermodynamic software to confirm the potential phases. Carbides of M<sub>6</sub>C were found to be formed at grain boundaries after aging at 800–850 °C for short-term treatment. The other two phases (μ phase and P phase) indicated in the phase diagram were not observed for the samples after aging treatment up to 15 h. Furthermore, double loop electrochemical potentiokinetic reactivation (DL-EPR) tests were conducted to examine the IGC resistance. The degree of sensitization increased with the aging time and severe corrosion was found to occur at grain boundaries. For the first time, the influence of aging treatment on the wear behavior of this superalloy has been specifically studied. Concerning the hot processing of Ni-Cr-Mo-based C276 superalloy, these results indicate the importance of avoiding high-temperature heat treatment for long periods. |
| first_indexed | 2024-03-10T08:35:11Z |
| format | Article |
| id | doaj.art-6fcd2337383d4272a96ddd3a5c6fea53 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T08:35:11Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-6fcd2337383d4272a96ddd3a5c6fea532023-11-22T08:42:57ZengMDPI AGMetals2075-47012021-08-01118132910.3390/met11081329Reductions of Intergranular Corrosion Resistance and Wear Resistance in a Ni-Cr-Mo-Based Superalloy by Aging-Treatment-Induced PrecipitationPengyan Zhang0Chi Zhang1Xiaoguang Zhou2Zhenyi Huang3Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Maanshan 243032, ChinaSchool of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Rolling Technology and Automation, Northeastern University, Shenyang 116024, ChinaKey Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Maanshan 243032, ChinaNi-Cr-Mo-based superalloy is widely used as a key component in many critical environments. To ensure that the manufacturing process does not impact the long-term service performance of these components, the aging precipitation behavior at different temperatures and its effect on intergranular corrosion (IGC) resistance and wear resistance of a Ni-Cr-Mo-based C276 superalloy were investigated. The equilibrium phase diagram was calculated first using thermodynamic software to confirm the potential phases. Carbides of M<sub>6</sub>C were found to be formed at grain boundaries after aging at 800–850 °C for short-term treatment. The other two phases (μ phase and P phase) indicated in the phase diagram were not observed for the samples after aging treatment up to 15 h. Furthermore, double loop electrochemical potentiokinetic reactivation (DL-EPR) tests were conducted to examine the IGC resistance. The degree of sensitization increased with the aging time and severe corrosion was found to occur at grain boundaries. For the first time, the influence of aging treatment on the wear behavior of this superalloy has been specifically studied. Concerning the hot processing of Ni-Cr-Mo-based C276 superalloy, these results indicate the importance of avoiding high-temperature heat treatment for long periods.https://www.mdpi.com/2075-4701/11/8/1329Ni-Cr-Mo-based superalloyaging treatmentprecipitationintergranular corrosion resistancewear resistance |
| spellingShingle | Pengyan Zhang Chi Zhang Xiaoguang Zhou Zhenyi Huang Reductions of Intergranular Corrosion Resistance and Wear Resistance in a Ni-Cr-Mo-Based Superalloy by Aging-Treatment-Induced Precipitation Metals Ni-Cr-Mo-based superalloy aging treatment precipitation intergranular corrosion resistance wear resistance |
| title | Reductions of Intergranular Corrosion Resistance and Wear Resistance in a Ni-Cr-Mo-Based Superalloy by Aging-Treatment-Induced Precipitation |
| title_full | Reductions of Intergranular Corrosion Resistance and Wear Resistance in a Ni-Cr-Mo-Based Superalloy by Aging-Treatment-Induced Precipitation |
| title_fullStr | Reductions of Intergranular Corrosion Resistance and Wear Resistance in a Ni-Cr-Mo-Based Superalloy by Aging-Treatment-Induced Precipitation |
| title_full_unstemmed | Reductions of Intergranular Corrosion Resistance and Wear Resistance in a Ni-Cr-Mo-Based Superalloy by Aging-Treatment-Induced Precipitation |
| title_short | Reductions of Intergranular Corrosion Resistance and Wear Resistance in a Ni-Cr-Mo-Based Superalloy by Aging-Treatment-Induced Precipitation |
| title_sort | reductions of intergranular corrosion resistance and wear resistance in a ni cr mo based superalloy by aging treatment induced precipitation |
| topic | Ni-Cr-Mo-based superalloy aging treatment precipitation intergranular corrosion resistance wear resistance |
| url | https://www.mdpi.com/2075-4701/11/8/1329 |
| work_keys_str_mv | AT pengyanzhang reductionsofintergranularcorrosionresistanceandwearresistanceinanicrmobasedsuperalloybyagingtreatmentinducedprecipitation AT chizhang reductionsofintergranularcorrosionresistanceandwearresistanceinanicrmobasedsuperalloybyagingtreatmentinducedprecipitation AT xiaoguangzhou reductionsofintergranularcorrosionresistanceandwearresistanceinanicrmobasedsuperalloybyagingtreatmentinducedprecipitation AT zhenyihuang reductionsofintergranularcorrosionresistanceandwearresistanceinanicrmobasedsuperalloybyagingtreatmentinducedprecipitation |