Microstructure morphology and aging characteristics of 9% Cr martensitic heat-resistant steel after service
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24 dic 2024
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Categoría del artículo: Research Article
Publicado en línea: 24 dic 2024
Páginas: 50 - 65
Recibido: 02 abr 2024
Aceptado: 26 oct 2024
DOI: https://doi.org/10.2478/msp-2024-0044
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© 2024 the Zhang Kun et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Chemical composition of P91 and P92 (mass fraction, %)_
| Materials | C | Mn | P | S | Si | Cr | Mo | V | Nb | N | Ni |
|---|---|---|---|---|---|---|---|---|---|---|---|
| P91 | 0.10 | 0.35 | 0.015 | 0.005 | 0.28 | 8.77 | 0.92 | 0.21 | 0.08 | 0.05 | 0.20 |
High-temperature endurance test results_
| Item | Temperature (°C) |
|
|
|---|---|---|---|
| Reference value (GB5310) | 540 | 166 | |
| Actual measured value | 2# | 540 | 95 |
Mechanical property test results at high temperature (600°C)_
| Item |
|
|
|
|
|
|---|---|---|---|---|---|
| Reference value (GB5310) | ≥198 | — | — | — | |
| Actual measured value | G3-1 | 220 | 305 | 35.0 | 89 |
| G3-2 | 220 | 310 | 37.0 | 89 |
Mechanical property test results at room temperature_
| Item |
|
|
|
|---|---|---|---|
| Reference value (GB5310) | 415 | 585 | |
| Actual measured value | 1# | 283 | 560 |