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Title: Displacement Cascade Damage Production in Metals

Radiation-induced changes in microstructure and mechanical properties in structural materials are the result of a complex set of physical processes initiated by the collision between an energetic particle (neutron or ion) and an atom in the lattice. This primary damage event is called an atomic displacement cascade. The simplest description of a displacement cascade is to view it as a series of many billiard-ball-like elastic collisions among the atoms in the material. This chapter describes the formation and evolution of this primary radiation damage mechanism to provide an overview of how stable defects are formed by displacement cascades, as well as the nature and morphology of the defects themselves. The impact of the relevant variables such as cascade energy and irradiation temperature is discussed, and defect formation in different materials is compared.
 [1] ;  [2] ;  [3]
  1. ORNL
  2. Belgian Nuclear Research Centre, SCK-CEN
  3. University of Helsinki
Publication Date:
OSTI Identifier:
DOE Contract Number:
Resource Type:
OECD Nuclear Energy Agency, Paris, France
Research Org:
Oak Ridge National Laboratory (ORNL)
Sponsoring Org:
SC USDOE - Office of Science (SC)
Country of Publication:
United States
defect creation; radiation effects; metals