ASM speciality handbook: Stainless steels. Hrsg. von <i>J. R. Davis</i>, 577 S., ASM International, Materials Park, Ohio, USA, 1994, £ 136.00 (ASM Member £ 102.00) ISBN 0‐87170‐503‐6. In Europa zu beziehen durch: American Technical Publishers Ltd, 27–29 Knowl Piece, Wilbury Way, Hitchin, Herts, SG4 OSX, England

Stichel, W.

doi:10.1002/maco.19950460815

Cited by 11 publications

(4 citation statements)

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“…During the course of operating pulverised coal fired power plants, considerable experience has been gained of the fireside surface degradation of components in these systems while burning a wide variety of coals 8,14,19 – 21. It has been found that waterwalls and superheater/reheater tubes are particularly vulnerable.…”

Section: Pulverised Fuel Systemsmentioning

confidence: 99%

“…To gain the benefits of increasing efficiencies, there has traditionally been a steady increase in gas turbine operating temperatures/pressures, with current models firing at temperatures of up to about 1400–1500°C and at pressures of up to ∼33 bar 14,21,30,31. Recent increases in gas operating temperatures have been facilitated using increasingly sophisticated blade cooling technologies, coupled with the use of thermal barrier coatings (TBCs), to restrict the component bulk operating temperatures to less than ∼950°C 30,31.…”

Section: Gas Turbinesmentioning

confidence: 99%

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Fireside issues in advanced power generation systems

Simms

Sumner

Hussain

et al. 2013

Materials Science and Technology

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The requirements to supply increasing quantities of electricity and simultaneously to reduce the environmental impact of its production are currently major issues for the power generation industry. Routes to meeting these challenges include the development and use of power plants with ever increasing efficiencies coupled with the use of both a wider range of fuels and technologies designed to minimise CO2 emissions. For fireside hot gas path components, issues of concern include deposition, erosion and corrosion in novel operating environments and increased operating temperatures. The novel operating environments will be produced both by the use of new fuel mixes and by the development of more complex gas pathways (e.g. in various oxyfired or gasification systems). Higher rates of deposition could significantly reduce heat transfer and increase the need for component cleaning. However, degradation of component surfaces has the potential to be life limiting, and so such effects need to be minimised. Materials and operational issues related to these objectives are reviewed.

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Section: Pulverised Fuel Systemsmentioning

confidence: 99%

Section: Gas Turbinesmentioning

confidence: 99%

Fireside issues in advanced power generation systems

Simms

Sumner

Hussain

et al. 2013

Materials Science and Technology

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“…Steel alloys are the most widely used engineering material [1] with extensive applications in marine, transportation, mining, and construction industries, to name a few. Armour steels, which are low-carbon steel alloys, have been used heavily for armoured vehicles and defense purposes as these steels have good ballistic impact resistance [2,3]. In particular, rolled homogeneous armour (RHA) steel is extensively used for a wide range of applications relating to military and defense.…”

Section: Introductionmentioning

confidence: 99%

Modeling and experimental calibration of the corrosion of RHA steel in immersion and salt-fog environments

Jordan

Tschopp²,

Mlsna

et al. 2018

Corrosion Engineering, Science and Technology

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An investigation into the general and pitting corrosion rates of rolled homogeneous armour (RHA) steel in immersion and salt-fog environments is presented. Although the mechanical properties of RHA steel have been studied, the corrosion effects on RHA steel have not been quantified. An immersion environment of 3.5% NaCl was used to induce corrosion for four immersion samples. A Q-fog corrosion tester was used to simulate a salt-fog/humidity/drying environment for four saltfog samples. The different mechanisms of corrosion and their rates were quantified through mass loss, laser profilometry and scanning electron microscopy. The immersion samples show a linear rate of corrosion of 1.47 g/year (R 2 = 0.994) throughout the entire testing period. The salt-fog samples had a significant mass gain for the first 500 h of corrosion, as the corrosion products are retained. Immersion samples showed no signs of pitting, while the salt-fog samples had sustained pit nucleation, growth, and coalescence.

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“…Blades and vanes within the hot gas path of the power turbine need to withstand aggressive operating conditions in terms of the combinations of component temperatures, mechanical loads and oxidation/corrosion resistance. 7–10 To cope with the progressively increasing aggressiveness in firing conditions, the materials used for blades and vanes in the hot gas paths of IGTs have needed considerable development, resulting in with a series of new alloys with increased creep and thermal fatigue resistance. 11,12 Until the 1970s, increased high temperature oxidation and corrosion resistance of these new materials was targeted as a compromise to alloys with improved high temperature mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Simulating novel gas turbine conditions for materials assessment: Cascade design and operation

Sumner

Simms

Werner

et al. 2017

Materials Science and Technology

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Integrated gasification combined cycles can incorporate pre-combustion carbon capture. High-H 2 syngas produces high H 2 O levels after combustion, potentially accelerating gas turbine component damage. Determining materials systems' suitability for this novel environment requires exposures in representative environments. Thus, an existing 0.7 MW burner rig was modified to generate the combustion environment and incorporate a cascade of 15 air-cooled turbine blades. Computational fluid dynamic calculations using blade dimensions and flow requirements supported the cascade design and determined blade placement within the gas flow. Trials of the modified unit have shown that a simulated combusted H 2 -rich syngas composition was generated at gas temperatures ≤1440°C. A 1000 h exposure has been carried out with thermal barrier coated blades to demonstrate the operation of the unit.

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Cited by 11 publications

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Fireside issues in advanced power generation systems

Fireside issues in advanced power generation systems

Modeling and experimental calibration of the corrosion of RHA steel in immersion and salt-fog environments

Simulating novel gas turbine conditions for materials assessment: Cascade design and operation

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