Direct observation of a plastic deformation autowave in a zirconium alloy

1998 ◽  
Vol 24 (1) ◽  
pp. 12-13 ◽  
Author(s):  
V. I. Danilov ◽  
S. Yu. Zavodchikov ◽  
S. A. Barannikova ◽  
I. Yu. Zykov ◽  
L. B. Zuev
Keyword(s):  
Plastic Deformation ◽  
Direct Observation ◽  
Zirconium Alloy

Plastic Deformation-Induced Nanocrystalline Aluminum in Al-Based Amorphous Alloys

1993 ◽  
Vol 321 ◽  
Author(s):  
H. Chen ◽  
Y. He ◽  
G. J. Shiflet ◽  
S. J. Poon
Keyword(s):  
Plastic Deformation ◽  
Amorphous Alloy ◽  
Shear Band ◽  
Thin Layer ◽  
Ball Milling ◽  
Direct Observation ◽  
Amorphous Alloys ◽  
Shear Bands ◽  
Amorphous Ribbons ◽  
Nanocrystalline Aluminum

ABSTRACTWe report the first direct observation of crystallization induced in the slipped planes of aluminum based amorphous alloys by bending the amorphous ribbons. Nanometer-sized crystalline precipitates are found exclusively within a thin layer (shear band) in the slipped planes extending across the deformed amorphous alloy ribbons. It is also found that the nanocrystalline aluminum can be produced by ball-Milling. It is likely that local atomic rearrangements within the shear bands create the nanocrystals which appear after plastic deformation.

scholarly journals Direct observation of hydrogenation and dehydrogenation of a zirconium alloy

2016 ◽  
Vol 659 ◽  
pp. 23-30 ◽  
Author(s):  
H.H. Shen ◽  
X.T. Zu ◽  
B. Chen ◽  
C.Q. Huang ◽  
K. Sun
Keyword(s):  
Direct Observation ◽  
Zirconium Alloy

Direct Observation of Developed Plastic Deformation and Its Application to Nondestructive Testing

1996 ◽  
Vol 35 (Part 2, No. 7A) ◽  
pp. L854-L857 ◽  
Author(s):  
Sanichiro Yoshida ◽  
Suprapedi RiniWidiastuti ◽  
Marincan Pardede ◽  
Septriyanti Hutagalong ◽  
Julinda S. Marpaung ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Nondestructive Testing ◽  
Direct Observation

scholarly journals Direct Observation of Zirconium Alloy Oxidation at the Nanoscale

2019 ◽  
Vol 25 (S2) ◽  
pp. 318-319
Author(s):  
Elizabeth Kautz ◽  
Sten Lambeets ◽  
Bharat Gwalani ◽  
Libor Kovarik ◽  
Daniel Perea ◽  
...  
Keyword(s):  
Direct Observation ◽  
Zirconium Alloy ◽  
Alloy Oxidation

Sem Examinations of Glass Knives

1970 ◽  
Vol 28 ◽  
pp. 282-283
Author(s):  
J. Temple Black
Keyword(s):  
Plastic Deformation ◽  
Tensile Loading ◽  
Resultant Force ◽  
Stress Concentrations ◽  
Edge Chipping ◽  
Surface Flaws ◽  
Edge Defects ◽  
Microscopic Surface

There are two types of edge defects common to glass knives as typically prepared for microtomy purposes: 1) striations and 2) edge chipping. The former is a function of the free breaking process while edge chipping results from usage or bumping of the edge. Because glass has no well defined planes in its structure, it should be highly resistant to plastic deformation of any sort, including tensile loading. In practice, prevention of microscopic surface flaws is impossible. The surface flaws produce stress concentrations so that tensile strengths in glass are typically 10-20 kpsi and vary only slightly with composition. If glass can be kept in compression, wherein failure is literally unknown (1), it will remain intact for long periods of time. Forces acting on the tool in microtomy produce a resultant force that acts to keep the edge in compression.

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