Dr. Michael Hoerner, PhD.

Senior Metallurgical Advisor
KnightHawk Engineering, Inc
KnightHawk Materials Lab
Houston, TX
USA 77058

Papers:

Failures in Fracking - From Fatigue to Temper Embrittlement
Fatigue and Fracture of a 17-4 PH Shaft
Reciprocating Compressor Tie Bolt Root Cause Failure Analysis