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Title: [A microstructural approach to fatigue crack processes in poly crystalline BCC materials]. Progress report

Technical Report ·
DOI:https://doi.org/10.2172/10164544· OSTI ID:10164544

Objective was to study fatigue where a combination of low temperature and cyclic loading produced cyclic cleavage in bcc Fe-base systems. Both dislocation dynamics and quasi-statics of crack growth were probed. This document reviews progress over the past 6 years: hydrogen embrittlement and cleavage, computations (stress near crack tip), dislocation emission from grain boundaries, fracture process zones, and understanding brittle fracture at the atomistic/dislocation scales and at the microscopic/macroscopic scale.

Research Organization:
Minnesota Univ., Minneapolis, MN (United States). Dept. of Chemical Engineering and Materials Science
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
FG02-84ER45141
OSTI ID:
10164544
Report Number(s):
DOE/ER/45141-9; ON: DE93016666
Resource Relation:
Other Information: PBD: [1992]
Country of Publication:
United States
Language:
English