Zobrazeno 1 - 10
of 276
pro vyhledávání: '"Carl C Koch"'
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 8456-8471 (2023)
This study aims to clarify the mechanical properties and deformation characteristics of the newly-developed DZ27CrNiMo (DZ2) axle steel for the China standard electric multiple units under dynamic loadings along the diameter direction of the axle at
Externí odkaz:
https://doaj.org/article/153b17e497ec4d4d8480b1775ac9cd37
Nanocrystalline materials exhibit exceptional mechanical properties, representing an exciting new class of structural materials for technological applications. The advancement of this important field depends on the development of new fabrication meth
Publikováno v:
Heterostructured Materials ISBN: 9781003153078
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b958ff420311084582ef397bea4acb5a
https://doi.org/10.1201/9781003153078-34
https://doi.org/10.1201/9781003153078-34
Publikováno v:
Metallurgical and Materials Transactions A. 50:2126-2138
Gradient materials have been reported to have superior strength–ductility combinations. In this study, gradient α″ martensite were introduced along the radial direction of cylindrical Ti-10V-2Al-3Fe (Ti-1023) samples by torsional straining, whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9b3847c11af155e4dd7a5dbd254c658
https://doi.org/10.1007/s11661-019-05157-5
https://doi.org/10.1007/s11661-019-05157-5
Autor:
Carl C. Koch, Ronald O. Scattergood, Mostafa Saber, Sina Shahbazmohamadi, Peiman Shahbeigi Roodposhti
Publikováno v:
Journal of Alloys and Compounds. 720:510-520
Low oxygen content powders of high purity elemental Fe, Cr and Hf were produced in a glove box by mechanically filing the solid materials. Fe10Cr and Fe14Cr4Hf nanocrystalline alloy powders were processed using these elemental powders in conjunction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4569f16af30a04e3eea549d492dfe0f6
https://doi.org/10.1016/j.jallcom.2017.05.261
https://doi.org/10.1016/j.jallcom.2017.05.261
Publikováno v:
Journal of Alloys and Compounds. 716:197-203
Nanocrystalline Cu12 at% Al alloy was synthesized by high energy ball milling under cryogenic condition. The alloy was then annealed up to 900 °C (or 0.87 T m ). Phase and microstructural evaluation were carried out by X-ray diffraction (XRD), trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70c9690a16f139ad28f78a444f791162
https://doi.org/10.1016/j.jallcom.2017.05.093
https://doi.org/10.1016/j.jallcom.2017.05.093
Publikováno v:
Journal of Alloys and Compounds. 717:219-225
Artifact-free bulk nanocrystalline Cu88Al11.5Y0.5 alloy has been synthesized by in situ consolidation of mechanically alloyed powder blend followed by annealing of the consolidated compact at 200 °C (or 0.35 Tm) for 30 min. Grain size determination
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a21a21594ada0b34f358337550b72a1
https://doi.org/10.1016/j.jallcom.2017.05.092
https://doi.org/10.1016/j.jallcom.2017.05.092
Autor:
Carl C. Koch
Publikováno v:
Journal of Materials Research. 32:3435-3444
This article is a review of research on nanostructured high-entropy alloys with emphasis on those made by the severe plastic deformation methods of mechanical alloying and high-pressure torsion. An example of thin film refractory metal alloys made by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b760bd52efd30e5343960c25c3530900
https://doi.org/10.1557/jmr.2017.341
https://doi.org/10.1557/jmr.2017.341
Autor:
Ronald O. Scattergood, Carl C. Koch, Suveen N. Mathaudhu, Weizong Xu, Guangming Cheng, Yongfeng Zhang, Yuntian Zhu, Enrique J. Lavernia
Publikováno v:
Acta Materialia. 131:457-466
C-component dislocation loops are one of the unique defects in hexagonal close-packed (hcp) crystals that promote the accelerated growth and void formation under irradiation. Here, we report in situ observation of c-component dislocation loop formati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32b001cd7db6363cc5282a52a5a6214b
https://doi.org/10.1016/j.actamat.2017.04.015
https://doi.org/10.1016/j.actamat.2017.04.015
Publikováno v:
Journal of Magnetism and Magnetic Materials. 420:296-302
Tempering is a critical step in Alnico alloy processing, yet the effects of tempering on microstructure have not been well studied. Here we report these effects, and in particular the effects on the Cu-Ni bridges. Energy-dispersive X-ray spectroscopy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05a3299c73c082e9ae90597d2bf4c0bd
https://doi.org/10.1016/j.jmmm.2016.07.040
https://doi.org/10.1016/j.jmmm.2016.07.040