IGSCC of grain boundary engineered 316L and 690 in supercritical water

West, E. A.; Was, Gary S.

doi:10.1016/j.jnucmat.2009.03.008

Cited by 94 publications

(34 citation statements)

References 30 publications

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“…S3 and low angle boundaries were less susceptible to IGSCC than RHABs. This effect was more effective at low engineering strain [121]. For the ferritic martensitic steels, Gupta and Was [117] increased the fraction of S1 boundaries, by about 30% compared to the as-received condition on HT-9.…”

Section: 17mentioning

confidence: 99%

Corrosion issues in supercritical water reactor (SCWR) systems

Teysseyre

2012

Nuclear Corrosion Science and Engineering

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Section: 17mentioning

confidence: 99%

Corrosion issues in supercritical water reactor (SCWR) systems

Teysseyre

2012

Nuclear Corrosion Science and Engineering

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“…In recent years, the control of brittle fracture [37–38], creep deformation [39–41], fatigue fracture [42–45], corrosion [46–49] and stress corrosion cracking [40–41 50–51] have been successfully achieved by applying the concept of GBE based on the control of GBCD and grain boundary connectivity in polycrystalline engineering materials. GBE has been extensively achieved by the incorporation of a high fraction of Σ3 n boundaries by annealing in low-stacking fault energy FCC metals and alloys.…”

Section: Introductionmentioning

confidence: 99%

A new approach to grain boundary engineering for nanocrystalline materials

Kobayashi

Tsurekawa

Watanabe

2016

Beilstein J. Nanotechnol.

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A new approach to grain boundary engineering (GBE) for high performance nanocrystalline materials, especially those produced by electrodeposition and sputtering, is discussed on the basis of some important findings from recently available results on GBE for nanocrystalline materials. In order to optimize their utility, the beneficial effects of grain boundary microstructures have been seriously considered according to the almost established approach to GBE. This approach has been increasingly recognized for the development of high performance nanocrystalline materials with an extremely high density of grain boundaries and triple junctions. The effectiveness of precisely controlled grain boundary microstructures (quantitatively characterized by the grain boundary character distribution (GBCD) and grain boundary connectivity associated with triple junctions) has been revealed for recent achievements in the enhancement of grain boundary strengthening, hardness, and the control of segregation-induced intergranular brittleness and intergranular fatigue fracture in electrodeposited nickel and nickel alloys with initial submicrometer-grained structure. A new approach to GBE based on fractal analysis of grain boundary connectivity is proposed to produce high performance nanocrystalline or submicrometer-grained materials with desirable mechanical properties such as enhanced fracture resistance. Finally, the potential power of GBE is demonstrated for high performance functional materials like gold thin films through precise control of electrical resistance based on the fractal analysis of the grain boundary microstructure.

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“…The development of the supercritical water reactor, the only Generation IV design to employ water coolant, is facing challenges in the search for structural materials, especially in the fuel cladding material. A series of advanced materials, including austenite stainless steels, reduced activation ferritic/martensitic alloys (RAFM), ferritic/ martensitic (F/M) oxide dispersion-strengthened (ODS) steels, nickel-based advanced alloys and refractory alloys, have been investigated as prospective candidates [2][3][4][5]. Recently, a number of F/M ODS steels have been developed and examined for several key properties necessary for the applications in nuclear reactors [6,7].…”

Section: Introductionmentioning

confidence: 99%

On the microstructure and strengthening mechanism in oxide dispersion-strengthened 316 steel: A coordinated electron microscopy, atom probe tomography and in situ synchrotron tensile investigation

Miao

Zhou

et al. 2015

Materials Science and Engineering: A

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a b s t r a c tAn oxide dispersion-strengthened (ODS) 316 steel was developed to simultaneously provide the advantages of ODS steels in mechanical strength and radiation tolerance as well as the excellence of austenitic steels in creep performance and corrosion resistance. The precipitate phases within the austenite matrix were identified by the combined techniques of atom probe tomography (APT), scanning transmission electron microscopy equipped with electron dispersive X-ray spectroscopy (STEM-EDS), and synchrotron wide-angle and small-angle X-ray scattering (WAXS and SAXS). Coarse TiN, hexagonal YAlO 3 and orthorhombic YAlO 3 precipitates were found along with fine Y-Ti-O nanoparticles. In situ WAXS experiments were performed at room and elevated temperatures to examine the size effect on the load partitioning phenomenon for TiN, hexagonal YAlO 3 and Y 2 Ti 2 O 7 phases. In addition, the dislocation density evolution throughout the tensile tests was analyzed by the modified Williamson-Hall method and confirmed by transmission electron microscopy (TEM) observations, revealing the difference in plasticity at various temperatures.

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IGSCC of grain boundary engineered 316L and 690 in supercritical water

Cited by 94 publications

References 30 publications

Corrosion issues in supercritical water reactor (SCWR) systems

Corrosion issues in supercritical water reactor (SCWR) systems

A new approach to grain boundary engineering for nanocrystalline materials

On the microstructure and strengthening mechanism in oxide dispersion-strengthened 316 steel: A coordinated electron microscopy, atom probe tomography and in situ synchrotron tensile investigation

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