| 1. |
- Easterling, K. E., et al.
(author)
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Metallurgical case studies for engineering students
- 1973
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In: Metals and Materials. - 0026-0940. ; 7:10, s. 452-454
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Journal article (peer-reviewed)abstract
- The course described attempts to help engineering students adapt themselves to solving problems typically encountered in the metals industries
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| 2. |
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| 3. |
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| 4. |
- Strömgren, M., et al.
(author)
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The effect of interparticle contact area on the strength of cold-pressed aluminium powder compacts
- 1973
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In: Powder Metallurgy. - : Informa UK Limited. - 0032-5899 .- 1743-2901. ; 16:32, s. 155-165
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Journal article (peer-reviewed)abstract
- Measurements of the tensile strength of spherical cold-pressed aluminium powder, pressed to various densities up to the theoretical maximum, have shown that compaction is a two-stage process. At some high, intermediate pressure, interparticle sliding occurs in a way that does not itself increase densification but makes it easier for further deformation to occur. It is likely that the pressure at which this sliding takes place is dependent on the work-hardening rate of the powder as well as the powder size and morphology. In any case, it is shown to be important to the densification and strength reached by the compact. It is concluded that the strength of a green compact is dependent upon the interparticle metallic contacts made during compaction. However, the green strength is well below that of wrought aluminium, probably due to the presence of broken-up oxides, which act as stress-concentrators at the interparticle boundaries.
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| 5. |
- Talreja, Ramesh
(author)
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On fatigue life under stationary Gaussian random loads
- 1973
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In: Engineering Fracture Mechanics. - : Elsevier BV. - 0013-7944 .- 1873-7315. ; 5:4, s. 993-1007
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Journal article (peer-reviewed)abstract
- Load parameters for a stationary Gaussian random load are taken as the location, scale and shape parameters of its power spectrum. The centre frequency of a power spectrum is proposed as a measure of fatigue life. A fatigue life function, formulated in terms of the load parameters, is evaluated from the test results obtained by fatigue testing a structural steel under six different power spectral shapes. The concept of a shape operator is employed to correlate fatigue lives under different power spectral shapes.
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