Isopleth maps of iron, manganese, vanadium, and related elements in stream sediments of West Virginia

1994 ◽  
Keyword(s):  
West Virginia ◽  
Stream Sediments ◽  
Iron Manganese

scholarly journals Micro-charcoal abundances in stream sediments from Buckeye Creek Cave, West Virginia, USA

2012 ◽  
Vol 74 (1) ◽  
pp. 58-64 ◽  
Author(s):  
Gregory Springer ◽  
L. Nivanthi Mihindukulasooriya ◽  
D. Matthew White ◽  
Harold Rowe
Keyword(s):  
West Virginia ◽  
Stream Sediments

Solid Solution Effects and Deformation Micros trueture of Shock-Loaded Iron Manganese Alloys

1970 ◽  
Vol 28 ◽  
pp. 420-421
Author(s):  
A. Christou ◽  
J. V. Foltz ◽  
N. Brown
Keyword(s):  
Solid Solution ◽  
Shock Loading ◽  
High Strain ◽  
Local Stress ◽  
Strain Rates ◽  
Local Stress Concentration ◽  
Bcc Metals ◽  
Manganese Alloys ◽  
Iron Manganese ◽  
Transmission Microscope

In general, all BCC transition metals have been observed to twin under appropriate conditions. At the present time various experimental reports of solid solution effects on BCC metals have been made. Indications are that solid solution effects are important in the formation of twins. The formation of twins in metals and alloys may be explained in terms of dislocation mechanisms. It has been suggested that twins are nucleated by the achievement of local stress-concentration of the order of 15 to 45 times the applied stress. Prietner and Leslie have found that twins in BCC metals are nucleated at intersections of (110) and (112) or (112) and (112) type of planes.In this paper, observations are reported of a transmission microscope study of the iron manganese series under conditions in which twins both were and were not formed. High strain rates produced by shock loading provided the appropriate deformation conditions. The workhardening mechanisms of one alloy (Fe - 7.37 wt% Mn) were studied in detail.

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