A2 Tool steel fatigue 2

[Mech151]

I have the Atlas of Fatigue Curves, and Mil-hdbk-5, but I cannot find any data on A2 tool steel SN curves. I am trying to find the cycles to failure for A2 tool steel hardened to Rockwell 52, and subjected to 100KSI stress. Estimated UTS is 260ksi, yield-190ksi. Part is 1.5" dia.

1. Is there a generic material model that I can base the sn curve on.

2. Can anyone suggest a good reference for fatigue curves that focuses more on high strength tool steels? Of particular interest is the effect of heat treatment on endurance properties.

A2-(1.5" dia), similar to ASTM a681, X100crmoV5, generally a medium alloy steel.

 

[unclesyd]

Here is one that I found on H11. I've seen several other papers but most have been in Japanese.

http://www.blackwell-synergy.com/doi/abs/10.1111/j.1460-2695.2005.00939.x

 

[unclesyd]

You might find more if you search the following Journal.

"Fatigue & Fracture of Engineering Materials & Structures"

http://www.blackwellpublishing.com/journal.asp?ref=8756-758X

 

[TVP]

It is difficult to find fatigue data on tool steels, especially S-N curves. You are more likely to find low cycle fatigue data (crack growth due to cyclic plasticity). Perform a key word search of Google SCholar or Scirus (

http://www.scirus.net).

The following link has some papers on fatigue of tool steels:

http://www.ingvet.kau.se/mtrl/itc2002.shtml