Combined Recrystallization and Precipitation in a Cu-9Ni-6Sn Alloy

Ray, R.K.; Narayanan, S. Chandra

doi:10.1007/bf02644420

Cited by 40 publications

(11 citation statements)

References 9 publications

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“…The trend observed in Figure 2 therefore is attributable to the formation of directionally aligned deformation bandlike structures. These deformation bandlike structures have also been reported to render the preferred sites for recrystallization or precipitation on heat treating the alloy, [5] as well as a unique characteristic of tensile anisotropy as observed in the present study. Despite the practical significance, the studies on the deformation bandlike structures in some high-strength Cu alloys are lacking.…”

Section: Methodsmentioning

confidence: 64%

“…Such a directionality in the deformation bandlike structure has often been observed in the cold-worked, highstrength Cu alloys, including Cu-Ni-Sn alloys. [2,5,13] Kato et al further proposed that these dislocation networks tended to align along a particular direction for the specimen sectioned along a primary slip plane. [14] Figure 5 represents a (111) pole figure measured for the 57 pct cold-worked 6222 alloy.…”

Section: Methodsmentioning

confidence: 96%

“…The present observation was consistent with the previous studies on Cu-Ni-Sn alloys with a similar amount of cold working. [5] A unique tensile anisotropy in the cold-rolled 6222 alloy therefore is believed to be a reflection of the combination of texture components and a directionality of the dislocation network. Obviously, the deformation bandlike structures, aligned mainly perpendicular to the rolling direction, would reduce the tensile strength and elongation of specimens with the tensile axis parallel to the rolling direction.…”

Section: Methodsmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10][11][12] Among the high-strength Cu alloys, Cu-Ni-Sn alloys have gathered strong attention as possible low-cost substitutes for Cu-Be alloys. [1][2][3][4][5][6][7][8][9][10][11][12] The Cu-Ni-Sn alloys contain a relatively high amount of expensive Ni and Sn, which acts as a barrier for the wide spread use of the alloys. The low hot workability further limits the application.…”

Section: Introductionmentioning

confidence: 99%

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Tensile anisotropy in Cu-Ni-Mn-Sn-Al alloys

Han,

Sohn,

Kim

et al. 2004

Metall Mater Trans A

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In the present study, the tensile anisotropy of age-hardened Cu-6Ni-2Mn-2Sn-2Al, Cu-6Ni-2Mn-2Sn-2Al, and Cu-6Ni-2Mn-5Al alloy sheets, either perpendicular or parallel to the rolling direction, was examined. It was found that age-hardened Cu-Ni-Mn-Sn-Al alloys have higher tensile strength along the T orientation than L orientation at high rolling ratios. Such a trend was most notable in the high Al containing Cu-6Ni-2Mn-5Al alloy among the alloys studied. At high rolling ratios, well-developed deformation bandlike structures were observed to be mostly aligned perpendicular to the rolling direction for each alloy. These deformation bandlike structures appeared to be responsible for the higher tensile strength along the T orientation. The transmission electron microscopy (TEM) examination demonstrated that the deformation bandlike structures consisted of tangled dislocation networks, which were further thickened with the addition of Al or the reduction of Sn. The stacking fault energy (SFE) of Al and Sn, as related to the ease of cross-slip, is believed to be responsible for the present observation.

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Section: Methodsmentioning

confidence: 64%

Section: Methodsmentioning

confidence: 96%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tensile anisotropy in Cu-Ni-Mn-Sn-Al alloys

Han,

Sohn,

Kim

et al. 2004

Metall Mater Trans A

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“…Cu-Ni-Sn alloy systems have been regarded as potential substitutes for Cu-Be alloys. Among the Cu-Ni-Sn alloy systems, Cu-9Ni-6Sn alloys [1][2][3][4] are considered to have the best strength/ductility combination. When hot rolling is applied to produce sheet products, hot cracking problems occur [5] as a result of Sn-rich segregates formed during the solidification in castings.…”

Section: Introductionmentioning

confidence: 99%

Effect of Zr addition on the fatigue strength of Cu-6Ni-2Mn-2Sn-2Al alloy

Goto¹,

Han²,

Kim³

et al. 2007

WIT Transactions on Modelling and Simulation, Vol 46

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Fatigue tests of Cu-6Ni-2Mn-2Sn-2Al alloy smooth specimens were carried out to clarify the effect of trace Zr on the fatigue strength. The growth behaviour of a major crack, which led to the final fracture of the specimen, was monitored to study the physical basis of fatigue damage. When stress amplitude was less than σ a = 350 MPa, the fatigue life of Zr-containing alloys was about two times larger than that of alloys without Zr. When σ a > 350 MPa, increments of fatigue life due to Zr decrease with an increase in σ a and the increments were negligible at σ a = 400 MPa. Increased fatigue life due to Zr addition resulted from an increase in crack initiation life and microcrack growth life. The growth rate of a small crack was determined by a term, σ a n l, independent of Zr addition. The effects of trace Zr on fatigue strength were discussed with relation to the initiation and propagation behaviour of a major crack.

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Effect of surface strain on discontinuous precipitation kinetics in a Cu-7.7 at % Ag alloy

Manna

Pabi

1994

J Mater Sci Lett

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Combined Recrystallization and Precipitation in a Cu-9Ni-6Sn Alloy

Cited by 40 publications

References 9 publications

Tensile anisotropy in Cu-Ni-Mn-Sn-Al alloys

Tensile anisotropy in Cu-Ni-Mn-Sn-Al alloys

Effect of Zr addition on the fatigue strength of Cu-6Ni-2Mn-2Sn-2Al alloy

Effect of surface strain on discontinuous precipitation kinetics in a Cu-7.7 at % Ag alloy

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