Corrosion and life assessment of IntrexTM superheater tubes in a CFB oil shale boiler

Dedov, Andrei; Klevtsov, I.; Lausmaa, T.; Hlebnikov, Aleksandr; Bojarinova, Tatjana

doi:10.1016/j.applthermaleng.2015.12.061

Cited by 12 publications

(5 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cr possesses lower electric potential, and gains a stronger affinity with O, in order that Cr 2 O 3 preferentially generated, which was compact and continuous as well as can create a good diffusion barrier for [O] (free oxygen atom) to spread to the matrix [26,27]. The mass content of Cr in an alloy, which is greater than 25%, provides a capability to guarantee the formation of Cr 2 O 3 scales to prevent matrix from corrosion [28]. Cr content of Super304 and TP347H were 18.71% and 19.37%, respectively, which were lower than 25%, supplied a poor support to guarantee the formation of a compact and continuous Cr 2 O 3 scale on the surface of tubes.…”

Section: Resultsmentioning

confidence: 99%

Investigation on High Temperature Corrosion Characteristic of Super304H, TP347H, and HR3C Steel in an Ultra‐supercritical Coal‐fired Boiler^▴

Wang

Liang

et al. 2020

Fuel Cells

View full text Add to dashboard Cite

The high temperature corrosion characteristic of Super304H, TP347H, and HR3C steel in an ultra‐supercritical coal‐fired boiler with service time of 17,973 h was investigated. The samples were analyzed by XRD, SEM, and EDS. The results showed that corrosion scales were composed and could be divided into three layers, including outer layer with composite reaction of alkalis and sulfate, middle layer with oxidation, and penetrated inner layer with oxidation and sulfidation. In addition, spalling of corrosion scales in the Super304H and TP347H samples was observed with the reasons of low Cr content and thermal expansion difference between different corrosion layers.

show abstract

Section: Resultsmentioning

confidence: 99%

Investigation on High Temperature Corrosion Characteristic of Super304H, TP347H, and HR3C Steel in an Ultra‐supercritical Coal‐fired Boiler^▴

Wang

Liang

et al. 2020

Fuel Cells

View full text Add to dashboard Cite

show abstract

“…Xiong W. Z. et al 81 studied the 12Cr1MoV steel. While various steel alloys of X8CrNiMoVNb16-13, X8CrNiMoNb16-16, SA213-TP347HFG, and 12Cr18Ni12Ti were investigated by Dedov A. et al 82 Moreover, Liu Y. et al 83 was compared the biomass environment with high and low chlorine contained coal to reveal the hot corrosion behavior of common boiler steels T91, 12Cr1MoVG, and TP347H. The result showed that high-Cl environments were more destructive to the steel specimens.…”

Section: Overview Of Research Hotspotsmentioning

confidence: 99%

Research hotspots and future trends of hot corrosion research: a bibliometric analysis

Nurrochman,

Junianto,

Korda

et al. 2023

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Once Ḋc ss is known, for example by FE analyses, for different values of n, it is possible to calculate β through Equation (10), by using assumed values for the stress multiplier, α [27]. The value of α such that β does not vary with n, is the reference stress parameter η [27].…”

Section: Impression Creep Testmentioning

confidence: 99%

“…Nevertheless, an increase of the creep strain rate in the sample area has been observed by finite element (FE) analyses of drum, steam pipes and turbine rotor bores. This is due to the increase in stress at the bottom of the excavation, which is up to 1.2–1.5 times greater than the stresses in the intact wall in the same depth from the external surface of the component [10,11]. In order to assess the creep damage due to this stress increment caused by the scoop sampling, Klevtsov and Dedov [11] carried out FE analyses of a steam pipe with an outer diameter, D 0 , of 325 mm and a wall thickness, t w , of 30 mm, and creep cavity count on three bends steam pipes of 12Ch1MF and 15Ch1M1F.…”

Section: Specialised Small Specimen Creep Testingmentioning

confidence: 99%

The role of small specimen creep testing within a life assessment framework for high temperature power plant

Morris

Cacciapuoti

Sun

2017

International Materials Reviews

View full text Add to dashboard Cite

The safe operation of components operating at high temperature and pressure faces numerous challenges associated with ageing materials and maintaining commercial viability whilst economies transition to a lower carbon future as part of their climate change commitments. Due to these challenges the plant operator faces increasing pressure to ensure that any capital or operational expenditures are optimised and must ensure that they duly recognise plant age, condition, operating regime and ultimately the planned closure date.This review, for the first time, describes how small specimen creep testing can be applied within a practical and deployable life assessment framework and in conjunction with other assessment techniques. The current state of the art for small specimen creep testing is critically reviewed; this also includes a review of traditional techniques used on site for the metallurgical assessment of material condition, with examples from site investigations and assessment campaigns in both conventional and nuclear plant applications.In order to enhance the current practice for assessing the condition of creep ageing components this review proposes the more proactive use of small specimen testing methods for the in-service condition assessment of power plant materials, notably earlier in the plant lifecycle and within a holistic life assessment framework. This is intended to provide a means of calibrating the time dependent response of the component or system being monitored, thereby providing a key reference in-service strain rate measurement, or material property evaluation, that can subsequently be used with other traditionally deployed assessment methods to define a more targeted and cost-effective forward inspection plan. The review describes how small specimen creep testing methods and other complementary tools can be use in a new and structured approach to life management.The current status of small specimen testing methods, for both conventional and nuclear applications, is described along with a detailed discussion on current practice for in-service creep life assessment, with a case study used to illustrate the main principals. A case study is presented for ageing CMV (0.5%Cr0.5%Mo0.25%V) main steam pipework due to the extensive amount of through life data available, which highlights the particular challenges associated with the interpretation of various types of site outage inspection data, in conjunction with on-load plant operational data. The current approach to the assessment of component condition follows well established inspection based practices defined in various industry good practice guides, with expert elicitation and experience used to judge the condition of the component, system and operational risk on return to service.This review proposes a new approach to the holistic life assessment of high temperature plant, with a particular emphasis on more proactive use of small specimen testing. In addition, the review has 2 highlighted other aspects of the current approach to in-...

show abstract

Corrosion and life assessment of IntrexTM superheater tubes in a CFB oil shale boiler

Cited by 12 publications

References 16 publications

Investigation on High Temperature Corrosion Characteristic of Super304H, TP347H, and HR3C Steel in an Ultra‐supercritical Coal‐fired Boiler^▴

Investigation on High Temperature Corrosion Characteristic of Super304H, TP347H, and HR3C Steel in an Ultra‐supercritical Coal‐fired Boiler^▴

Research hotspots and future trends of hot corrosion research: a bibliometric analysis

The role of small specimen creep testing within a life assessment framework for high temperature power plant

Contact Info

Product

Resources

About

Corrosion and life assessment of IntrexTM superheater tubes in a CFB oil shale boiler

Cited by 12 publications

References 16 publications

Investigation on High Temperature Corrosion Characteristic of Super304H, TP347H, and HR3C Steel in an Ultra‐supercritical Coal‐fired Boiler▴

Investigation on High Temperature Corrosion Characteristic of Super304H, TP347H, and HR3C Steel in an Ultra‐supercritical Coal‐fired Boiler▴

Research hotspots and future trends of hot corrosion research: a bibliometric analysis

The role of small specimen creep testing within a life assessment framework for high temperature power plant

Contact Info

Product

Resources

About

Investigation on High Temperature Corrosion Characteristic of Super304H, TP347H, and HR3C Steel in an Ultra‐supercritical Coal‐fired Boiler^▴

Investigation on High Temperature Corrosion Characteristic of Super304H, TP347H, and HR3C Steel in an Ultra‐supercritical Coal‐fired Boiler^▴