Development of heat-resistant Fe-based alloys for A-USC steam boiler using ultra-high purity (UHP) technology
Source abstract
Abstract
Abstract The design of ultra-high purity (UHP) Fe-based alloys for advanced ultra-supercritical (A-USC) technology is suggested in this work. The creep testing at 700 °C and a stress level of 150 MPa have been performed in air. The addition of small amount of reactive-elements, W, Nb, Zr and Sc, has been undertaken into model alloys with the intention to promote the precipitation strengthening. Optimizing the chemical composition coupled by pre-straining enabled improving the creep resistance; hence a creep-rupture life of 750 h was reached. The oxidation resistance in supercritical water is remarkably enhanced by small addition of Sc.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Subcritical and Supercritical Water Processes · High-Temperature Coating Behaviors · Advanced Materials Characterization Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Phenomenological and microstructural analysis of intermediate creep in Ni-Fe-based alloy for advanced ultra-supercritical fossil power plants10.1016/j.actamat.2015.09.006 ↗
2. Creep and LCF behaviors of newly developed advanced heat resistant austenitic stainless steel for A-USC10.1016/j.proeng.2013.03.248 ↗
3. Wrought Ni-base superalloys for steam turbine applications beyond 700°C10.1002/adem.200310083 ↗
4. A new wrought Ni–Fe-base superalloy for advanced ultra-supercritical power plant applications beyond 70010.1016/j.matlet.2013.07.060 ↗
5. Materials for ultra-supercritical coal-fired power plant boilers10.1016/j.ijpvp.2006.08.006 ↗
6. Creep-rupture performance of 0.007-23Cr-45Ni-6W-Ti,Nb austenitic alloy (HR6W) tubes10.1016/j.ijpvp.2010.03.011 ↗
7. Investigation on long-term creep rupture properties and microstructure stability of Fe–Ni based alloy Ni–23Cr–7W at700°C10.1016/j.msea.2012.12.019 ↗
8. Stability of microstructure and mechanical properties of GH984G alloy during long-term thermal exposure10.4028/www.scientific.net/MSF.747-748.647 ↗
9. Development of boiler tubes and pipes for advanced USC power plants
10. Investigation and improvement on structural stability and stress rupture properties of a Ni–Fe based alloy10.1016/j.matdes.2015.09.098 ↗
11. Assessment of service induced microstructural damage and its rejuvenation in turbine blades10.1007/BF02645208 ↗
12. Low temperature carbide precipitation in a nickel base superalloy10.1007/BF02670326 ↗
13. Microstructure evolution in HR3C austenitic steel during long-term creep at 650 °C10.1016/j.msea.2016.10.077 ↗
14. Creep deformation and rupture mechanism of an advanced wrought Ni-Fe-based superalloy for 700°C class A-USC steam turbine rotor application10.1016/j.jallcom.2016.06.120 ↗
15. Alloying effects on creep and oxidation resistance of austenitic stainless steel alloys employing intermetallic precipitates10.1016/j.intermet.2007.12.005 ↗
16. Preparation of 10 Kg ingot of utra-pure iron10.1002/(SICI)1521-396X(199806)167:2<347::AID-PSSA347>3.0.CO;2-E ↗
17. High-temperature deformation and fracture mechanisms of an advanced heat resistant Fe-Cr-Ni alloy10.1016/j.msea.2017.01.002 ↗
18. Microstructural evolution and the effect on hardness and plasticity of S31042 heat-resistant steel during creep10.1016/j.msea.2014.04.073 ↗
19. Effect of Nb and Cu on the high temperature creep properties of a high Mn–N austenitic stainless steel10.1016/j.matchar.2013.05.015 ↗
20. High temperature creep resistance of austenitic heat-resisting steels10.1016/0921-5093(91)90282-R ↗
21. Effect of precipitation behavior on creep strength of 15%Cr ferritic steels at high temperature between 923 and 1023 K10.1016/j.msea.2013.10.085 ↗
22. Effect of preexisting plastic deformation on the creep behavior of TP347 austenitic steel10.1016/j.msea.2015.12.051 ↗
23. Accelerated precipitation in the AFA stainless steel Fe–20Cr–30Ni–2Nb–5Al via cold working10.1016/j.intermet.2014.04.018 ↗
24. Microstructure development of Oxide scale during steam oxidation of the Fe-20Cr-30Ni-2Nb (at%) austenitic steel at 1073K10.2320/matertrans.M2013258 ↗
25. Effect of chromium content and surface preparation on the oxidation behaviour of Ni-Cr model alloys in superheated steam10.1007/s11661-015-2786-7 ↗
26. Scaling of austenitic stainless steels and nickel-base alloys in high-temperature steam at 973 K10.5006/1.3585251 ↗
27. The reactive element effect in high-temperature corrosion10.1016/0921-5093(89)90730-2 ↗
28. First principles study of atomic hydrogen and oxygen adsorption on doped-iron nanoclusters