Ductile-brittle transition of thoriated chromium

Wilcox, B. A.; Veigel, N. D.; Clauer, A. H.

doi:10.1007/bf02680606

Cited by 32 publications

(10 citation statements)

References 12 publications

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“…If the specimen can pass through the initial stage of yielding without cracking, then deformation can proceed, permitting a high elongation before cleavage fracture occurs. 38 Therefore, the whole picture of chromium brittleness is something of an unresolved issue.…”

Section: Brittleness Mechanismsmentioning

confidence: 99%

Chromium and chromium-based alloys: Problems and possibilities for high-temperature service

Harada

2004

JOM

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Beyond Ni-Based Superalloys OverviewThis article presents an overview of publications on mechanical properties of chromium and chromium-based alloys, with particular emphasis on ductility at low temperature and strength at high temperature. Analysis of rather scattered data suggests that a chromium or chromium-based alloy can be ductilized at ambient temperature and is quite capable of being strengthened to high levels at high temperature. A new composition design and process would open new opportunities for chromiumbased alloys as structural materials used at temperatures up to 1,300°C.

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Section: Brittleness Mechanismsmentioning

confidence: 99%

Chromium and chromium-based alloys: Problems and possibilities for high-temperature service

Harada

2004

JOM

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“…The results of Wilcox et al support this suggestion. [26] For Cr-3 pct Ru alloy, macroscopic deformation may occur before crack initiation and therefore this alloy shows some tensile elongation (Figure 7(b)). However, for the alloys with precipitates, the precipitates at grain boundaries or near the surface may supply other possible sites for crack initiation (Figure 7(d)) and may in this way decrease the tensile elongation.…”

Section: B Mechanical Propertiesmentioning

confidence: 97%

Microstructural evolution and mechanical properties of Cr-Ru alloys

Kobayashi

Harada

2005

Metall Mater Trans A

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“…Addition of oxide particles such as ThO 2 [16,17], MgO [11,8] and Y 2 O 3 [19,20] in chromium was shown to improve its room-temperature ductility [11], to retard subscale Cr 2 N formation [18] or to lower the DBTT [16]. Veigel [16] showed an oxide dispersion strengthening (ODS) effect at low temperature (150-200°C), but this beneficial effect unfortunately vanishes at high temperature (1093°C).…”

Section: Alloy Designmentioning

confidence: 99%