LM6 SN Curves (or other fatigue data)
LM6 SN Curves (or other fatigue data)
(OP)
Hi all,
I know this question was asked a few years ago (with no answers) but the thread has been closed so I'm not able to comment on it (see thread330-170605: LM6 Aluminum S-N Curve / Goodman Diagram).
Does anyone know where I can find SN data for LM6 aluminium alloy (or any other fatigue/fracture data)? I have the fatigue strengths at various temperatures but like the previous poster I am looking for the curves themselves.
I've done a literature search and looked in a number of books/papers but can't seem to find anything!
Alternatively if there is a means of generating the curves myself that would be fine. The fatigue strengths (@10^7 cycles) I currently have are:
52MPa @ 20 degrees C
44MPa @ 100 degrees C
33MPa @ 200 degrees C
25MPa @ 300 degrees C
Thank you
Dan
I know this question was asked a few years ago (with no answers) but the thread has been closed so I'm not able to comment on it (see thread330-170605: LM6 Aluminum S-N Curve / Goodman Diagram).
Does anyone know where I can find SN data for LM6 aluminium alloy (or any other fatigue/fracture data)? I have the fatigue strengths at various temperatures but like the previous poster I am looking for the curves themselves.
I've done a literature search and looked in a number of books/papers but can't seem to find anything!
Alternatively if there is a means of generating the curves myself that would be fine. The fatigue strengths (@10^7 cycles) I currently have are:
52MPa @ 20 degrees C
44MPa @ 100 degrees C
33MPa @ 200 degrees C
25MPa @ 300 degrees C
Thank you
Dan





RE: LM6 SN Curves (or other fatigue data)
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Keep in mind that the fatigue strength will be greatly dependent on the amount and location of porosity, and to a lesser extent, on the grain size and secondary dendrite arm spacing.