• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 314
  • 72
  • 47
  • 25
  • 11
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 8
  • 8
  • 8
  • 8
  • Tagged with
  • 569
  • 569
  • 81
  • 63
  • 60
  • 58
  • 57
  • 52
  • 49
  • 48
  • 48
  • 43
  • 43
  • 42
  • 36
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
121

Fatigue of aluminum alloy 7075-T651 /

Zhao, Tianwen. January 2009 (has links)
Thesis (Ph. D.)--University of Nevada, Reno, 2008. / "December, 2008." Includes bibliographical references (leaves 76-83). Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2009]. 1 microfilm reel ; 35 mm. Online version available on the World Wide Web.
122

Dynamic loading characteristics in metals and composites

Tan, Kian Sing. January 2009 (has links) (PDF)
Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, December 2009. / Thesis Advisor(s): Kwon, Young. Second Reader: Didoszak, Jarema. "December 2009." Description based on title screen as viewed on January 26, 2010. Author(s) subject terms: Tensile tests, Strain rate effects, Dynamic loading, Failure criterion. Includes bibliographical references (p. 37-38). Also available in print.
123

Fatigue crack growth mechanisms in Al-Si-Mg alloys

Lados, Diana Aida. January 2004 (has links)
Thesis (Ph. D.)--Worcester Polytechnic Institute. / Keywords: Microstructure; Elastic-Plastic Fracture Mechanics; Crack closure; A356; J-integral; Conventionally cast and SSM Al-Si-Mg alloys; Residual stress; Heat treatment; Fatigue crack growth mechanisms; Threshold stress intensity factor; Plastic zone; Paris law; Fracture toughness; Roughness. Includes bibliographical references.
124

Microstructure characterization of friction-stir processed nickel-aluminum bronze through orientation imaging microscopy /

Cuevas, Assunta Mariela. January 2002 (has links)
Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, September 2002. / Thesis advisor(s): Terry R. McNelley. Includes bibliographical references (p. 53-55). Also available online.
125

Synthesis and microstructure of NixAl1-x (0.5 x 1) thin films

Anand, Thangaraj Joseph Sahaya. January 2004 (has links)
published_or_final_version / abstract / toc / Mechanical Engineering / Doctoral / Doctor of Philosophy
126

ON THE PHENOMENON OF DISCONTINUOUS PLASTIC DEFORMATION IN SELECTED ALUMINUM ALLOYS

Riggs, Bruce Allen, 1930- January 1964 (has links)
No description available.
127

PROPERTIES OF UNIDIRECTIONALLY SOLIDIFIED ALLOYS

Benn, Edward, 1933- January 1972 (has links)
No description available.
128

Aqueous modelling of aluminum wire injection procedures in steelmaking

Külünk, Bahadir. January 1986 (has links)
No description available.
129

Strontium dissolution in liquid aluminum and A356 alloys

Pekgüleryüz, Mihriban Özden January 1987 (has links)
The dissolution mechanism and kinetics of a number of strontium master alloys in liquid aluminum and A356 alloys have been investigated. The dissolution behaviour of the strontium alloys was found to show marked differences depending on strontium content. Dilute strontium alloys containing less than 63 weight percent Sr were observed to exhibit simple dissolution in both melts. The dissolution rate and the recoveries of these alloys were found to increase with increasing melt temperature. Over the temperature interval of 675-775$ sp circ$C dissolution was determined to be mass-transfer controlled with associated activation energies of 10-20 kcal/mole. Experimental rate constants for dissolution showed good agreement with a mass transfer correlation expressed as k = (0.67(Gr.Sc)$ sp{1/4}$ + 0.58(h/r)) (D/h). The dissolution of high strontium master alloys $(>$63 wt. pct. Sr), unlike the dilute alloys, was accompanied by the formation of various intermetallics. Additions at low melt temperatures yielded the exothermic formation of those intermetallics that have the lowest Sr content as seen in the relevant phase diagram, i.e., SrAl$ sb4$ in liquid Al and SrAl$ sb2$Si$ sb2$ in liquid A356. Due to low reaction rates at these low melt temperatures, these intermetallics formed as dispersed particles that could easily dissolve in the melt yielding high recoveries. At high melt temperatures, the associated chemical reactions yielded, as products, the higher Sr intermetallics which formed with little or no exothermicity. These intermetallics were observed to be scarcely soluble in the melt resulting in low strontium recoveries. The dissolution times of these alloys were found to show good agreement with calculated values based on a two-stage dissolution model comprising an initial exothermic reaction period and a subsequent free dissolution period. The strontium master alloys were classified in two groups; the high Sr alloys that are efficient at low temperatures of 675-7
130

The microstructure and properties of extruded P/M CT91-T7X151

Walker, John Andrew 12 1900 (has links)
No description available.

Page generated in 0.05 seconds