The effect of environment and structure on creep fatigue crack propagation in a P/M astroloy H. LOYER-DANFLOU, M. MARTY, A. WALDER, J. MENDEZ and P. VIOLAN J. Phys. IV France, 03 C7 (1993) C7-359-C7-362 DOI: 10.1051/jp4:1993756