Activated Slip Systems and (111) Rotation Recrystallization Mechanism in 99.999 mass% Aluminum Single Crystal Deformed in Tension along (001) Direction at 77 K

剛行, 宮崎; 稔, 田上; 敏雄, 浜; 仁, 小川; 達也, 岡田; 富久治, 猪子

doi:10.2320/jinstmet.68.342

Cited by 4 publications

(10 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…12,14) The flow stress of the ͗001͘ single crystal deformed at LNT (106 MPa at the strain of 0.22) is about five times as large as the flow stress obtained at RT (22 MPa). Cross-slip with large-step height was suppressed in the LNT crystal.…”

Section: Relationship Between Deformation and Recrystallization In Tementioning

confidence: 97%

“…The possibility that such a combination acts as a RG nucleus was proposed for recrystallization in aluminum single crystals tensile-deformed along ͗001͘ direction at LNT and subsequently annealed. 10,13,14) In such single crystals, in addition to eight primary slip systems, activation of slip systems with Schmid factor of zero was induced by the local strain accumulation caused by the complete suppression of prominent cross-slip. The formation of RGs rotated about four ͗111͘ axes in both clockwise and counterclockwise directions with respect to the deformed matrix was geometrically explained by the combination of major and minor slip systems.…”

Section: Recrystallization Nucleusmentioning

confidence: 99%

“…Recently, they reported interesting results of ͗001͘, ͗112͘ and ͗111͘ oriented aluminum single crystals tensiledeformed at room temperature, which exhibited multiple slip from the initial stage of plastic deformation. [10][11][12][13][14] For these single crystals, bands of large orientation gradient such as deformation bands were not formed. Hence, the misorientation in their deformed microstructures was within a range of 5°.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Deformation and Recrystallization of Tensile-deformed or Rolled Fe-3%Si Alloy Single Crystals

et al. 2005

Self Cite

View full text Add to dashboard Cite

Fe-3%Si alloy single crystal samples with various tensile directions were deformed to strains of 0.25 to 0.65 and subsequently annealed. Necking occurred and work-hardening was very small in all tensile-deformed samples. After annealing, no recrystallized grain was formed. Fe-3%Si alloy single crystal sample of {111}͗112͘ orientation was lightly rolled to 25 % and subsequently annealed. Many recrystallized grains were formed in the rolled sample. The orientation of recrystallized grains formed at the rolled surface was totally different from the orientation of those formed in the interior of the sample. These results are discussed based on the tendency for cross-slip and the dislocation network model for nucleus of recrystallized grain.KEY WORDS: Fe-3%Si alloy; single crystal; deformation; recrystallization.lationship between deformation and recrystallization is expected in BCC metal single crystals. One major objective of the present study is to investigate deformation and annealing behaviors of single crystals of Fe-3%Si alloy with various tensile orientations. The other objective is to study the recrystallization in uniformly deformed Fe-3%Si alloy single crystal of {111}͗112͘ orientation deformed by light rolling. Experimental ProcedureSingle crystal samples were spark-cut from a coarsegrained Fe-3%Si alloy polycrystal prepared by JFE Steel Co. Ltd. The dimension of the gauge portion of the samples for tensile deformation was 4 mmϫ12 mmϫ2 mm in width, length and thickness. Four samples were prepared for tensile deformation. The tensile directions of the samples are plotted in a stereographic triangle in Fig. 1. Sample No. 4 had the same {111}͗112͘ orientation as the one in the proceeding paper.17) These samples were tensile-deformed at the strain rate of 5.6ϫ10Ϫ5 to 1.4ϫ10 Ϫ4 s Ϫ1, to strains of 0.25 to 0.65. The dimension of the sample for rolling was 4 mmϫ46 mmϫ2 mm in width, length and thickness. The initial orientation of the rolled sample is presented in Fig. 2. The normal direction (ND) of the rolled surface and the rolled direction (RD) were [111] and [211], respectively. In order to obtain uniform deformation, relatively light rolling of 25 % was applied. The deformed microstructure was examined using a scanning electron microscope (SEM JEOL JSM-6400). Orientation change associated with deformation was determined from electron channeling patterns (ECPs) taken with the SEM.The annealing was conducted for the tensile-deformed samples at 1 173 to 1 273 K for 180 to 780 s. The rolled sample was annealed at 873 K for 720 s. After annealing, orientation of RGs was determined from their ECPs. For the rolled sample, the rolled surface was removed by 0.25 mm to observe the formation of RGs in the interior of the sample. Results Tensile-deformed SamplesNominal stress-strain curves for the four tensile-deformed samples are presented in Fig. 3. In all samples, necking started from the early stage of plastic deformation. After the neck formation, plastic deformation proceeded mainly in the neck portion. Hence, ...

show abstract

Section: Relationship Between Deformation and Recrystallization In Tementioning

confidence: 97%

Section: Recrystallization Nucleusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Deformation and Recrystallization of Tensile-deformed or Rolled Fe-3%Si Alloy Single Crystals

et al. 2005

Self Cite

View full text Add to dashboard Cite

show abstract

“…They have recently found close correlation among slip morphology, cell structure, workhardening and recrystallization behavior of aluminum single crystals tensile-deformed along h001i, h111i or h112i direction in which macroscopic deformation was uniform without the formation of deformation bands due to the balanced activation of multiple slip from the initial stage of plastic deformation. [15][16][17][18] Most interesting results were the temperature dependence of cross-slip and its influence on deformation microstructure, work-hardening and recrystallization in single crystals tensile-deformed along the h001i direction. 15,18) (The tested single crystals had a rectangular gauge portion.…”

Section: Introductionmentioning

confidence: 99%

“…[15][16][17][18] Most interesting results were the temperature dependence of cross-slip and its influence on deformation microstructure, work-hardening and recrystallization in single crystals tensile-deformed along the h001i direction. 15,18) (The tested single crystals had a rectangular gauge portion. For the tensile direction of [001], the front and side surfaces of the sample were indexed as (100) and (010), respectively.…”

Section: Introductionmentioning

confidence: 99%

Deformation and Recrystallization in Lightly-Rolled Aluminum Single Crystals of Cube Orientation

et al. 2005

Self Cite

View full text Add to dashboard Cite

Deformation and recrystallization of 17%-and 34%-rolled aluminum single crystals of cube orientation were studied. Most slip bands observed in the TD surface were straight and the occurrences of cross-slip were small. There was a relatively large orientation variation in the TD surface and the deviation from the initial orientation reached 10 in the 34%-rolled sample. After annealing, recrystallized grains were formed both at the rolled surfaces and around the middle of the thickness of the sample. Two thirds of the recrystallized grains had h111i-rotation relationships with the deformed matrix. Although all h111i-rotation relationships were found, their occurrences were not the same. Above results are compared with those obtained in tensile-deformed aluminum single crystals with the same initial orientation.

show abstract

Slip Morphology and Recrystallization in Copper Single Crystals Tensile-Deformed along &lang;011&rang; and &lang;001&rang; Direction

et al. 2005

Self Cite

View full text Add to dashboard Cite

Single crystals of pure copper were tensile-deformed along h011i-and h001i direction and then annealed to study their deformation and recrystallization behaviors. In the h011i single crystals, no large-scale deformation band was formed. The areas where the secondary slip was activated were small and were randomly distributed throughout the deformed crystals. Large rotation with respect to the initial orientation was found. After annealing, many recrystallized grains were formed. In the h001i single crystal, because of almost equal activation of eight slip systems on four slip planes, orientation change associated with deformation was very small. Large-scale cross-slip was completely suppressed. As a result, the work-hardening of the h001i single crystal was very large. After annealing, large primary recrystallized grains were formed. The above results are compared with those of aluminum single crystals having the same tensile orientations.

show abstract

Activated Slip Systems and (111) Rotation Recrystallization Mechanism in 99.999 mass% Aluminum Single Crystal Deformed in Tension along (001) Direction at 77 K

Cited by 4 publications

References 24 publications

Deformation and Recrystallization of Tensile-deformed or Rolled Fe-3%Si Alloy Single Crystals

Deformation and Recrystallization of Tensile-deformed or Rolled Fe-3%Si Alloy Single Crystals

Deformation and Recrystallization in Lightly-Rolled Aluminum Single Crystals of Cube Orientation

Slip Morphology and Recrystallization in Copper Single Crystals Tensile-Deformed along &lang;011&rang; and &lang;001&rang; Direction

Contact Info

Product

Resources

About