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COMPARATIVE RESEARCHES OF FRACTURES OF HIGH-STRENGTH CAST IRON IN THE AS-CAST AND DEFORMED STATE
Published 2016-01-01Subjects: “…the results of comparative studies of fracture surfaces of high-strength cast iron in the as-cast state and after hot direct extrusion through an aperture of a conical die are presented. the shape change of graphite inclusions and components of the metal matrix is examined with increasing the reduction ratio from 0 (as-cast state) to 80%. for the fist time, using the electrochemical etching of the metal matrix of the cast iron, it is demonstrated experimentally that at plastic deformation the ductile flow of graphite inclusions occurs without fracturing of the latter. the surface morphology of a deformed graphite inclusion is revealed. it is shown that inside the inclusion the strain is distributed non-uniformly: the peripheral zones are deformed to a larger extent while the central part may retain its original radial structure. the fact that the most part of graphite inclusions on the fracture surface of the deformed cast iron appeared undamaged (very small amount of fractured inclusions was observed) testifies against the common opinion that graphite acts as a crack nucleation site. a hypothesis is put forward that the crack nucleates in the metal matrix, presumably at the pearlite/ferrite interface, and propagates from one graphite inclusion to another rounding but not damaging the latter.…”
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The 0ν2β-decay CROSS experiment: preliminary results and prospects
Published 2020-01-01Get full text
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WAND: A multi-modal dataset integrating advanced MRI, MEG, and TMS for multi-scale brain analysis
Published 2025-02-01Get full text
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School-based mindfulness training in early adolescence: what works, for whom and how in the MYRIAD trial?
Published 2022-08-01Get full text
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2853
Risk Factors for Hospital Readmission Following Noncardiac Surgery: International Cohort Study
Published 2024-06-01Get full text
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I-SPY COVID adaptive platform trial for COVID-19 acute respiratory failure: rationale, design and operations
Published 2022-06-01“…Enrolled patients are randomised to receive one of up to four investigational agents or a control and are evaluated for a family of two primary outcomes—time to recovery and mortality. …”
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2857
Clinical management of community-acquired meningitis in adults in the UK and Ireland in 2017: a retrospective cohort study on behalf of the National Infection Trainees Collaborativ...
Published 2022-07-01“…Diagnostics and therapeutics should be targeted for quality improvement strategies. Work should be done to improve the impact of guidelines, understand why they are not followed and, once published, ensure they translate into changed practice.…”
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2858
Current Status and Future Prospects of the SNO+ Experiment
Published 2016-01-01Get full text
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2859
Isovitexin targets SIRT3 to prevent steroid-induced osteonecrosis of the femoral head by modulating mitophagy-mediated ferroptosis
Published 2025-01-01“…Bone Research…”
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FGFR antagonists restore defective mandibular bone repair in a mouse model of osteochondrodysplasia
Published 2025-01-01“…Bone Research…”
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