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solid particle erosion

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Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 723-734, October 11–14, 2016,
... Abstract Work has been progressing over recent years to develop a standard test method for high temperature solid particle erosion testing. Early in 2015 this standard was published by ASTM as G211-14 Standard Test Method for Conducting Elevated Temperature Erosion Tests by Solid Particle...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 382-399, October 22–25, 2013,
... Abstract Solid particle erosion (SPE) harms steam and gas turbines, reducing efficiency and raising costs. The push for ultra-supercritical turbines reignited interest in SPE’s impact on high-temperature alloys. While the gas turbine industry researches methods to improve erosion resistance...
Proceedings Papers

AM-EPRI2010, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Sixth International Conference, 850-871, August 31–September 3, 2010,
... Abstract Solid particle erosion (SPE) and liquid droplet erosion (LDE) cause severe damage to turbine components and lead to premature failures, business loss and rapier costs to power plant owners and operators. Under a program funded by the Electric Power Research Institute (EPRI...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 35-46, October 21–24, 2019,
... Abstract The measurement of damage from high temperature solid particle erosion (HTSPE) can be a lengthy process within the laboratory with many lab-based systems requiring sequential heat and cooling of the test piece to enable mass and/or scar volume measurements to be made ex situ. Over...
Proceedings Papers

AM-EPRI2010, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Sixth International Conference, 470-486, August 31–September 3, 2010,
... Abstract An international initiative is underway to develop the first standardized high-temperature solid particle erosion test method for steam turbine applications, addressing limitations of the current room-temperature ASTM G76 standard. Led by EPRI, this program involves laboratories from...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 400-411, October 22–25, 2013,
... Abstract High-temperature solid particle erosion (SPE) is a major threat to efficiency in power plants and jet engines, potentially reducing turbine efficiency by 7-10% and causing significant CO 2 emissions. The sources of these particles vary widely, from volcanic ash in engines to fly ash...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 685-693, October 21–24, 2019,
... Abstract The fall-off of oxide scale with poor adhesion inside superheater/reheater tubes in boilers for (ultra) supercritical power unit is the main cause of accidents such as superheater/reheater blockage, tube explosion and solid particle erosion in the steam turbine which cause serious...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 852-862, October 21–24, 2019,
... Abstract Steam turbine is one of the critical equipments in coal-fired power plants, steel P91 is a common material of its control valves. CoCr-based hardfacing on valve seats can resist long time exposure to water vapor with high temperature, thermal fatigue and solid particles erosion under...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 981-989, October 21–24, 2019,
... an adverse effect on heat transmission while the exfoliation may possibly result in blocking, tube explosion and solid particle erosion in turbine, thereby causing accident. It is reported that the solid particle behavior in both gas and solid flows can be measured by detecting the shock wave produced...
Proceedings Papers

AM-EPRI2010, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Sixth International Conference, 801-820, August 31–September 3, 2010,
...., Rincon C., Arps J., 2006, Solid Particle Erosion Protection of Turbine Blades with Thick Nitride and Carbonitride Coatings from Magnetron Sputter Deposition, Surface Engineering: Proceedings of the 5th International Surface Engineering Congress, M. J. Jackson, ed., ASM International, Materials Park...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 694-702, October 21–24, 2019,
..., but a great hidden danger exists in the equipment safety due to the erosion and abrasion of the probe caused by the solid particles [9-11]. At present, there are no effective application examples of online monitoring of spalling of oxide scales in China [12, 13]. In order to evaluate the spalling of oxide...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 528-539, October 15–18, 2024,
... in blade attachment of HP and IP rotors Creep and other high-temperature damage in HP and IP blades Solid Particle Erosion Deposits Introduction to Effectsand Removal o Evidence of issues (corrosion impacts) Copper Deposition in HP Turbine Fatigue in LP blades Fatigue in HP and IP blades...
Proceedings Papers

AM-EPRI2010, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Sixth International Conference, 821-838, August 31–September 3, 2010,
... room temperature particle erosion test in accordance with ASTM G76. This test uses a defined amount of 50 m sized Alumina grit that is projected to a surface through an airblast gun and impacts the surface at a 20° angle. The test result is the time in seconds to erode 1/1000 of an inch ( = 1 mil...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 783-794, October 21–24, 2019,
... concerns over thermomechanical integrity of these coatings arise due to fine particle ingestion, when operated in a variety of environments ranging from volcanic zones, to desert conditions, resulting multiple failure mechanisms shown in Fig. 2 below. This leads to spallation of the TBCs and hence...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 673-684, October 21–24, 2019,
... of precipitation phase. In particular, the chain distribution of M23C6 seriously affects the shaping of materials, and may cause Cr depletion in areas near the crystal boundary. c) Secondary precipitation phase NbC: it is dispersed hard particles precipitated in the solid solution strengthening process and used...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 813-822, October 11–14, 2016,
... problems (e.g. tube failures) arise when the thermally grown oxide scale exfoliates or spalls in large quantities and blocks steam flow or when the scale lifts off but remains in place, creating a local hot spot in the underlying metal [5,8]. Even in small quantities, spalled oxide causes solid particle...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 803-814, October 22–25, 2013,
... (CTE) mismatch between alloy and oxide is higher in austenitic steels, leading to exfoliation of the outer scale. This phenomenon has led to boiler tube failures from tube blockage, as well as to increased solid particle erosion damage of steam turbines [1,2]. While efforts to model exfoliation have...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 1206-1219, October 22–25, 2013,
... Fatigue Fatigue low cycle or high cycle Stress Corrosion Cracking (SCC) Corrosion / Corrosion Fatigue Erosion solid particle or liquid impingement Erosion Corrosion Embrittlement /High Temperature Corrosion Mechanical (foreign objective) Damage Creep/stress rupture In assessing remaining...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 832-846, October 22–25, 2013,
... because of its impact on the life of high-temperature tubing and further impacts on the boilerturbine cycle, e.g. solid particle erosion of the turbine. A number of recent technical articles provide background on the current understanding of steam oxidation [ref. 2-5] and a distillation of a large body...
Proceedings Papers

AM-EPRI2010, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Sixth International Conference, 393-407, August 31–September 3, 2010,
... operations, and significantly reduce manufacturing and delivery times. PM technology could allow the use of new alloy systems with high temperature strength, creep resistance, and corrosion/erosion resistance that will enable power generation systems to operate at higher temperatures and pressures...