Dislocation structure of Zircaloy-4 low-cycle fatigued at 873K
Journal Article
·
· Scripta Metallurgica et Materialia
OSTI ID:231079
- Xi`an Jiaotong Univ. (China). Research Inst. for Strength of Metals
The lattice parameter ratio c/a appears to be an important factor for h.c.p. metals in influencing their deformation mode. Zirconium possesses a ratio of c/a which is equal to 1.593. This is lower than the ideal value 1.633; therefore, it might be expected to be unfavorable to basal slip. It is now well established that the first order prismatic slip {l_brace}10{bar 1}0{r_brace}<11{bar 2}0> is the principal deformation mode in zirconium and its alloys at all temperatures.To the authors` knowledge, few instances of basal slip in zirconium and zircaloys have been observed experimentally, especially during cyclic deformation. Therefore, the aim of the present work was to clarify the cyclic slip systems, including prismatic and basal planes with a common Burgers vector 1/3[2{ovr 11}0], in Zircaloy-4 under LCF at 873K.
- OSTI ID:
- 231079
- Journal Information:
- Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 2 Vol. 30; ISSN SCRMEX; ISSN 0956-716X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dislocation structures in zirconium and zircaloy-4 fatigued at different temperatures
Dislocations and twinning activated by the abrasion of Al{sub 2}O{sub 3}
Computer simulation of screw dislocation interactions with twin boundaries in h.c.p. metals
Journal Article
·
Mon Mar 31 23:00:00 EST 1997
· Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
·
OSTI ID:484851
Dislocations and twinning activated by the abrasion of Al{sub 2}O{sub 3}
Journal Article
·
Thu May 11 00:00:00 EDT 2000
· Acta Materialia
·
OSTI ID:20075940
Computer simulation of screw dislocation interactions with twin boundaries in h.c.p. metals
Journal Article
·
Thu Nov 30 23:00:00 EST 1995
· Acta Metallurgica et Materialia
·
OSTI ID:178011