Zobrazeno 1 - 10
of 66
pro vyhledávání: '"R.L. Hexemer"'
Publikováno v:
Journal of Materials Processing Technology. 230:72-79
The objective of this research was to develop a powder metallurgy (PM) counterpart to the wrought aluminum alloy 2618 utilizing press-and-sinter technology. Each starting blend was prepared from a strategic combination of prealloyed aluminum coupled
Autor:
Donald Paul Bishop, Bruce W. Williams, Taylor Alan C, Ian W. Donaldson, G.A. Sweet, R.L. Hexemer
Publikováno v:
Journal of Materials Processing Technology. 284:116742
Metal-matrix composites (MMC) of a 2000-series aluminum alloy coupled with AlN were fabricated through a commercially-relevant aluminum powder metallurgy (APM) approach. Cylindrical preforms containing 0–5 vol% AlN were produced to investigate the
Autor:
G.A. Sweet, L. J. B. Smith, Taylor Alan C, M. F. Wilson, Ian W. Donaldson, Bruce W. Williams, Donald Paul Bishop, R.L. Hexemer, M. Y. Amegadzie
Publikováno v:
Materials Performance and Characterization. 9:20190161
Sintered preforms made of an aluminum powder metallurgy (PM) 2000 series metal matrix composite designed for press-and-sinter applications were forward extruded at 450°C under displacement rates of 254 mm/min and 2,032 mm/min. The material was highl
Publikováno v:
Materials Science and Engineering: A. 648:123-133
Aluminum-based metal matrix composite (MMC) materials containing SiC, AlN, Si3N4 or BN were processed by spark plasma sintering (SPS). Ceramic powder type, size and content were investigated to determine their effect on sinter quality. SiC, AlN and S
Autor:
Donald Paul Bishop, Matthew D. Harding, R.L. Hexemer, Michael A. Gharghouri, Ian W. Donaldson
Publikováno v:
Journal of Materials Processing Technology. 221:31-39
The objective of this study was to characterize the mechanical/physical properties of an industrially processed Al–Zn–Mg–Cu powder metallurgy (PM) alloy and assess the subsequent effects of shot peening. The research involved a number of experi
Publikováno v:
Materials Science and Engineering: A. 608:273-282
Two air atomized aluminum powders, one of commercial purity and the other magnesium-doped (0.4 wt%), were processed by SPS and conventional PM means. An investigation of SPS processing parameters and their effect on sinter quality were investigated.
Publikováno v:
Canadian Metallurgical Quarterly. 52:380-390
In recent laboratory studies, a method designed to modify an emerging Al–Cu–Mg powder metallurgy alloy with Fe and/or Ni additions was successfully developed. The objectives of this research were designed to expand upon this work with an emphasis
Publikováno v:
Metallurgical and Materials Transactions A. 45:980-989
The objective of this research was to design aluminum powder metallurgy (PM) alloys and processing strategies that yielded sintered products with thermal properties that rivaled those of the cast and wrought aluminum alloys traditionally employed in
Publikováno v:
Canadian Metallurgical Quarterly. 52:51-59
The effects of Fe and Ni additions to an Al–Cu–Mg powder metallurgy alloy were studied. The transition elements were incorporated through two different approaches, admixed elemental powders and prealloying of the base Al powder. Prealloying prove
Publikováno v:
Materials Science and Engineering: A. 559:902-908
The objective of this work was to develop an aluminum powder metallurgy (P/M) alloy appropriate for industrial press-sinter technology. An entry in the 2 xxx series of aluminum–copper–magnesium alloys was explored for this purpose. Designated as