different opinions regarding 2014 aluminum alloy
different opinions regarding 2014 aluminum alloy
(OP)
According to fig.11.25 of Metals Handbook,vol2 9th ed., 18 minutes in 204 C can lead to Min. Y.P. and Min. Ductility equal to 345 MPa and 13%,respectively. I don't believe that and I think this results may be affected by many other parameters. What's your opinions?





RE: different opinions regarding 2014 aluminum alloy
RE: different opinions regarding 2014 aluminum alloy
RE: different opinions regarding 2014 aluminum alloy
these conditions, will be led to those mechanical prperties?
RE: different opinions regarding 2014 aluminum alloy
All values in kg/mm2
O – 19.0; 9.8; 18; 12.7; 9.1; 45
T3– 45.0; 28.8; 20%
T4,T451–43.6; 29.5; 20%; 26.7; 14.1; 105
T6,T651–42.9; 42.2; 13%; 29.5; 12.7; 135
2014 T-4,T451: die forgings will have yields approximately 20% lower.
2014 T-6,T651: extruded shapes greater than 3/4" thick will have strengths (TS,YS) 15%-20% higher than the listed values
RE: different opinions regarding 2014 aluminum alloy
RE: different opinions regarding 2014 aluminum alloy
Could you tell me more about your opinion?
RE: different opinions regarding 2014 aluminum alloy
RE: different opinions regarding 2014 aluminum alloy
i think 18 min. is not industrially practical and 149 C/10 HR IS BETTER.
RE: different opinions regarding 2014 aluminum alloy
Sorry about my erroneous posting about the time @ Temp as minutes instead of the correct hours. I can't blame that one on nobody but myself.
One more correction needs to be made and that is the 2014 T6 Ultimate tensile needs to be 49.2 instead of 42.9
The times I have fron ALCOA Handbooks for 2014 T6 precipitation heat treating are all 18 Hours @ 160°C for every form except the forgings. 2014 T6 Forgings are 10 Hrs @ 172°C.
RE: different opinions regarding 2014 aluminum alloy
thank you again.
Finally, what's your opinion about 204 C/18 minutes?
RE: different opinions regarding 2014 aluminum alloy
I lost my ultimate reference just prior to retiring, but I know who has one I’ll try to get up with him as see what other information is available.
I would also query ASM by e-mail and ask them to verify the numbers or if in error what are the correct numbers. I know they have done this on several occasions.
It might not hurt to query the producer of the material for a product data or technical sheet for this material.
RE: different opinions regarding 2014 aluminum alloy
The 2014 aluminum alloy has a T6510 temper. The alloy is subjected to a solution treatment, stress relieved by stretching to produce a 1-3% permanent strain followed by an artifical aging at 320 deg F.
RE: different opinions regarding 2014 aluminum alloy
thanks a lot. Could you gove me a reference about your opinion as well as some data about the resulted mechanical properties?
RE: different opinions regarding 2014 aluminum alloy
thank you.
please let me know detailed result of your survey.
Bon Courage.
RE: different opinions regarding 2014 aluminum alloy
Look at the following website at Ohio State at the curves on 2014. The reference is to William D. Callister and there are 6 books on Amazon by him about material science.
Some recent graduate might know which book is being referenced.
http://er6s1.eng.ohio-state.edu/mse/mse205/lectures/chapter11/chap11.pdf
Here is another reference to chapter 11 of ??? and I’ll bet all are books by Callister as one of his books chapter 11 is heat treatment of metals..
http://www.clarkson.edu/class/es260/Chap11Solns.PDF
This another website with the same data from chapter 11 but different parameters
http://web.utk.edu/~prack/mse201/HW7.pdf
RE: different opinions regarding 2014 aluminum alloy
I have already known about these references that you gave but I don't believe those. You mean that you got back on your prior opinion?
RE: different opinions regarding 2014 aluminum alloy
This is almost as interesting as the time my boss turned a tempering oven with a 100 #s' of high dollar Al castings up to 1250°F without looking in the oven.
RE: different opinions regarding 2014 aluminum alloy