Liquid Pb–Bi embrittlement effects on the T91 steel after different heat treatments

Long, Bin; Tong, Zhao; Gröschel, F.; Dai, Yong

doi:10.1016/j.jnucmat.2008.02.050

Cited by 67 publications

(47 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The LME likely occurs under slow strain rate tensile (SSRT) conditions [18,19,23,24]. Long et al [25] reported that the T91 steel tempered at low temperature demonstrated more pronounced susceptibility at SSRT. So, the tensile tests were performed under different strain rates to investigate the possible LME phenomenon.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of temperature and strain rate on the tensile behaviors of SIMP steel in static lead bismuth eutectic

Liu

Yan

Sha

et al. 2016

Journal of Nuclear Materials

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

“…A previous study used T91 tempered at low temperatures and mentioned the difficulties in handling radioactive materials and the lack of irradiated specimens [25]. Literature [20,25,27] shows that T91 is sensitive to LME phenomenon after tempering at 500…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature and strain rate on the tensile behaviors of SIMP steel in static lead bismuth eutectic

Liu

Yan

Sha

et al. 2016

Journal of Nuclear Materials

View full text Add to dashboard Cite

“…At lower and higher temperatures, LME is less of an issue, leading to a temperature interval ("ductility *Response to Reviewer trough") wherein the material is susceptible to LME (typically in 300 -450 C range, for ferritic and ferritic-martensitic alloys) [74][75][76].…”

Section: Cover Lettermentioning

confidence: 99%

“…Besides the above mentioned phenomena, applying stress to the unprotected solid metals exposed to liquid metals, the former may experience liquid metal embrittlement (LME), characterized by premature brittle failure, depending on various parameters [72,73]. At lower and higher temperatures, LME is less of an issue, leading to a temperature interval ("ductility trough") wherein the material is susceptible to LME (typically in 300 -450 C range, for ferritic and ferritic-martensitic alloys) [74][75][76]. These A significant number of studies on the formation of oxide layers in LBE at temperatures above 450 0 C have been performed on a variety of different steels, leading to theoretical models of oxide formation proposed [20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

A study of deformation and strain induced in bulk by the oxide layers formation on a Fe-Cr-Al alloy in high-temperature liquid Pb-Bi eutectic

et al. 2018

View full text Add to dashboard Cite

At elevated temperatures, heavy liquid metals and their alloys are known to create a highly corrosive environment that causes irreversible degradation of most iron-based materials. It has been found that an appropriate concentration of oxygen in the liquid alloy can significantly reduce this issue by creating a passivating oxide scale that controls diffusion, especially if Al is present in Fe-based materials (by Al-oxide formation). However, the increase of the temperature and of oxygen content in liquid phase leads to the increase of oxygen diffusion into bulk, and to promotion of the internal Al oxidation. This can cause a strain in bulk near the oxide layer, due either to mismatch between the thermal expansion coefficients of the oxides and bulk material, or to misfit of the crystal lattices (bulk vs. oxides). This work investigates the strain induced into proximal bulk of a Fe-Cr-Al alloy by oxide layers formation in liquid lead-bismuth eutectic utilizing synchrotron X-ray Laue microdiffraction. It is found that internal oxidation is the most likely cause for the strain in the metal rather than thermal expansion mismatch as a two-layer problem.Dear Sir, I re-submit our paper entitled: "A study of deformation and strain induced in bulk by the oxide layers formation on a Fe-Cr-Al alloy in high-temperature liquid Pb-Bi eutectic" on behalf of all co-authors to Acta Materialia, after addressing all the revisions stated by the reviewer. In the study, we analyze a strain in the near-interface bulk of ferritic FeCrAl alloy after its exposure to heavy liquid metals. Two possible origins of strain were considered: internal oxidation of aluminum in bulk, and thermal expansion mismatch between the oxide and the bulk. A positive correlation of dislocation density with peak width distribution indicates that strain comes from plastic deformation, while the evidence of grain refinement and sub-grain formation indicates a noticeable internal oxidation. Based on the comparison with theoretical predictions, we conclude that internal oxidation is more dominant mechanism of strain induction.Sincerely, Miroslav P. Popovic, UC Berkeley Cover LetterWe thank the reviewer for his/her time and effort.Below we address all reviewer's comments (labeled "C") in detail, marked in green (labeled "A").C 0: -Dear authors, congratulations for this interesting work.A 0: We thank the reviewer for his/her assessment of our paper. C1-1: You are studying the deformation and strain induced in the bulk of a Fe-Cr-Al alloy (Alkrothal 720) by oxide scales that form in liquid LBE. Alkrothal is a bcc alloy, a fact that you should clearly mention when you describe the material in the Experimental section (not just mention that it is a ferritic alloy), giving some basic information on the lattice parameters. A1-2: We thank the reviewer for this suggestion. We made changes in the manuscript and modified our statement (in the first paragraph of section 2. Experimental), so it reads now as following: C1-2. What you neglect to mention, however, is th...

show abstract

“…3. Increased hardness of the T91 base material obtained by reducing the tempering temperature is known to increase the susceptibility of T91 steel to LME [12][13][14].…”

Section: T91/316l Tig Weldmentioning

confidence: 99%

Compatibility of martensitic/austenitic steel welds with liquid lead bismuth eutectic environment

Bosch

Almazouzi

2009

Journal of Nuclear Materials

View full text Add to dashboard Cite

Liquid Pb–Bi embrittlement effects on the T91 steel after different heat treatments

Cited by 67 publications

References 9 publications

Effects of temperature and strain rate on the tensile behaviors of SIMP steel in static lead bismuth eutectic

Effects of temperature and strain rate on the tensile behaviors of SIMP steel in static lead bismuth eutectic

A study of deformation and strain induced in bulk by the oxide layers formation on a Fe-Cr-Al alloy in high-temperature liquid Pb-Bi eutectic

Compatibility of martensitic/austenitic steel welds with liquid lead bismuth eutectic environment

Contact Info

Product

Resources

About