Shield Performance of High Boron Alloyed Stainless Steel Composite Plate

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Abstract:

The shield thermal neutron performance of two high boron alloyed stainless steel composite plates(HBASSCP) was studied by the method of neutron beam transmission of neutron source reactor. The testing results indicate that the shield performance of the composite material is heavily affected by the size and distribution of the boride. Although the radiationresistance of high boron alloyed stainless steel increases with boron content, but blocky and sparse hypereutectic boride will appear in matrix when boron content is high (more than 3%), and these borides are difficult to be broken during hot deformation, so the thermal neutron is easy to penetrate directly through the space and can not be absorbed effectively. The difference between the shield performance obtained from experiments and the theoretical calculation is small for HBASSCP containing hypoeutectic boride in core material, but it is great for HBASSCP containing hypereutectic boride in core material.

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Periodical:

Advanced Materials Research (Volumes 535-537)

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651-654

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Online since:

June 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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