####################################################
# Pete Jemian <jemian@top>
# requesting 8 hours days, at minimum=4 hours days
# beamline 33BM, Absorption spectrum from Waspaloy
# instrument 33BM-B XAFS
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# top:/home/www/beamtime-requests/req00559.txt
# UNICAT Member Beam Time Request  #559
# created Fri Mar 19 14:10:34 CST 2004
####################################################

beamline:
	33BM

collaboration:
	No

collaborator_Jenia:
	ON

contact:
	jemian@top

days:
	8 hours

description:
	It is desired to calculate the anomalous dispersion
coefficients of nickel, cobalt, and iron in the
Waspaloy samples presently being by anomalous USAXS
on 33ID.  One method to obtain these anomalous dispersion
coefficients is to measure the absorption spectrum
and use a Kramers-Kronig integral.

[rest of this taken from an email from Pete to Jenia]
It is only necessary to measure the absorption spectrum
of one sample, by name,
           Waspaloy 1400F/630h
from a series of heat treatments
applied to a specific nickel-base superalloy
called Waspaloy(tm) which is used as the turbine
blade of jet aircraft engines.
I am reasonably confident that this sample 
has a thickness less than 25 micrometers.
Nominal composition and other useful information 
are given below, along with a WWW link to the 
manufacturer.

1. Could you please measure the absorption spectrum
from 7 - 10 keV in 1 eV steps?  I will need
Over this range, I expect that you will find 
response at the Fe K edge (7112 eV), the Co 
K edge (7709eV), and the Ni K edge (8333 eV) 
with the Ni edge being the strongest reponse.  

2. Could you also measure the empty instrument 
response over the same range from 7 keV to 10 keV?
I do not need as many data points for this, 
a 10 or 20 eV step size would be just fine.

Choose a reasonable counting time (1 sec/point).
I need file(s) with at least energy, monitor, and 
detector counts.  Other data in the file are OK 
but that is the information I will need for my
analysis of the anomalous scattering factors.

It's OK if you do this in pieces (it _is_ a large 
keV range) but please make sure the pieces have a 
reasonable overlap.  Also, make sure that the
scans do not start or end within 100 eV of these 
energies:  7709 eV and 8333 eV.



Allvac Waspaloy® (UNS-N07001)
http://www.allvac.com/allvac/pages/Nickel/UNSN07001.htm

Composition 
Element	wt%
Al 		1.40
B 		0.01
C 		0.05
Co 		13.0
Cr 		19.5
Fe 		1.0
Mo 		4.3
Ni 		balance
Ti 		3.0
Zr		0.07

Mechanical Properties
Density lb/in3 (g/cm3) 0.296 (8.19)
Metallurgical Condition 1,850 °F +age
Tensile Strength, ksi (MPa) 185 (1,276)
0.2% Yield Strength, ksi (MPa) 130 (897)
Elongation, % 23
Reduction in Area, % 25
Typical Hardness 38 HRC

equipment_required:
	

experiment:
	Absorption spectrum from Waspaloy

foreign_nationals:
	

hazards:
	none

instrument:
	33BM-B XAFS

instrument_other:
	

minimumdays:
	4 hours

name:
	Pete Jemian

new_request:
	ON

nonmembers:
	Rosario Gerhardt, Ga Tech
Gabrielle Long, APS

unacceptable_dates:
	please run this sample at earliest convenience

z34ID_details:
	


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