Structure and properties of ultra-fine grain Cu–Cr–Zr alloy produced by equal-channel angular pressing

Vinogradov, Alexei; Patlan, V.; Suzuki, Yasushi; Kitagawa, Kazuo; Копылов, В. И.

doi:10.1016/s1359-6454(01)00437-2

Cited by 322 publications

(184 citation statements)

References 22 publications

Supporting

Mentioning

159

Contrasting

Unclassified

Order By: Relevance

“…ECAP has been successfully used over the last decade to insure the ultrafine-grained structures in a wide range of ductile metals including pure Cu and Cu alloys [4,5,[10][11][12][13]. Microstructure is refined to equiaxed subgrains/grains below 1 µm under high strains through simple shear, accompanied with a significant increase of strength.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Severe Plastic Deformation and Heat Treatment on CuCrZr Alloys

et al. 2017

View full text Add to dashboard Cite

CuCrZr alloy was subjected to equal channel angular pressing method, belonging to the severe plastic deformation group, followed by heat treatment under different ageing conditions to optimize mechanical properties of the alloy. Before equal channel angular pressing, CuCrZr alloy was treated by solution annealing at temperature 1020 • C for 1 h. Afterwards, samples were pressed through an equal channel angular pressing die once at room temperature and subjected to artificial ageing under different conditions (200, 400, 450, 480 • C for 30, 60, 90, 120, 150 min). Optimization of the CuCrZr alloy was done through the study of mechanical properties and microhardness as a function of ageing temperature and time considering the progress in microstructural/substructural features.

show abstract

Section: Introductionmentioning

confidence: 99%

The Effect of Severe Plastic Deformation and Heat Treatment on CuCrZr Alloys

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Concerning the fatigue behaviors, crack growth rate (da= dN À ÁK), [5][6][7][8] fatigue life (S-N curve), [9][10][11] cyclic response (stress-strain curve, hysteresis loop), [9][10][11][12][13][14][15][16][17][18][19] etc., have been reported in the UFG materials with F.C.C. or B.C.C.…”

Section: Introductionmentioning

confidence: 99%

“…or B.C.C. structure, such as pure Cu, [11][12][13]15,17) Cu alloy, 8) Al alloy, 5,6,9,14,16,18) low carbon steel 7) and so on. 10,17,19) However, fatigue data of the UFG metals having H.C.P.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Crack Propagation Behavior in Commercial Purity Ti Severely Deformed by Accumulative Roll Bonding Process

et al. 2008

View full text Add to dashboard Cite

Fatigue properties of commercial purity titanium sheets severely deformed by the accumulative roll bonding (ARB) process were investigated. The ARB process was carried out up to 6 cycles (equivalent strain, " eq. ¼ 4:8). The sheets ARB processed by 2-, 4-and 6-cycle consist of fine equiaxed grains and elongated lamellar grains. In the sheet ARB processed by 6-cycle, the mean size of fine equiaxed grain was 89 nm, and the mean thickness of the lamellar grains were 67 nm. The tensile strength increased with increasing the number of the ARB cycle. Fatigue crack growth tests were performed to clarify the fatigue properties such as the crack growth rate and threshold stress intensity factor range for crack growth (ÁK th ). The ÁK th of the ARB processed specimens were smaller than that of the starting sheet. The ÁK th decreased with increasing the number of the ARB cycle until 4-cycle. However, the ÁK th of 6-cycle specimen was larger than that of the 4-cycle specimen. Fracture surface of the 6-cycle specimen was different from that of the 2-and 4-cycle specimens. Fatigue crack propagation behavior changes between 4-and 6-cycle specimens. On the other hand, the crack growth rate decreases with increasing the number of the ARB cycle.

show abstract

“…Numerous studies have demonstrated the possibility of a significant improvement in physicomechanical properties through using of methods of severe plastic deformation (SPD). Previous studies have shown that if at the 2nd stage of deformation the traditional methods of deformation are replaced, for example by rolling, drawing, by any SPD method, a combination of high strengths of about 688 MPa can be achieved in the alloys with a conductivity of 59% IACS, or 599 MPa at 82% IACS [9][10][11][12][13]. If the combination of ECAP operations with subsequent cold rolling is applied at stage 2, it is possible to obtain more optimal functional properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of cold rolling on microstructure and mechanical properties of Cu-0,5%Cr-0,2%Zr subjected to ECAP with various NUNBERS of passes

2017

View full text Add to dashboard Cite

Abstract. The paper studies the effect of the combination of ECAP and cold rolling on the structure, mechanical properties and coefficient of friction of low-alloyed bronzes. It is shown that the use of ECAP together with rolling leads to the formation of a UFG structure and an increase in strength characteristics, while the coefficient of friction is increases. Subsequent heat treatment results in additional hardening by the separation of fine particles, which also reduces the coefficient of friction.

show abstract

Structure and properties of ultra-fine grain Cu–Cr–Zr alloy produced by equal-channel angular pressing

Cited by 322 publications

References 22 publications

The Effect of Severe Plastic Deformation and Heat Treatment on CuCrZr Alloys

The Effect of Severe Plastic Deformation and Heat Treatment on CuCrZr Alloys

Fatigue Crack Propagation Behavior in Commercial Purity Ti Severely Deformed by Accumulative Roll Bonding Process

Effect of cold rolling on microstructure and mechanical properties of Cu-0,5%Cr-0,2%Zr subjected to ECAP with various NUNBERS of passes

Contact Info

Product

Resources

About