contributor author | K. Ara | |
contributor author | N. Ebine | |
contributor author | N. Nakajima | |
date accessioned | 2017-05-08T23:51:20Z | |
date available | 2017-05-08T23:51:20Z | |
date copyright | November, 1996 | |
date issued | 1996 | |
identifier issn | 0094-9930 | |
identifier other | JPVTAS-28370#447_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/117519 | |
description abstract | A method, MIM (magnetic interrogation method), is proposed for nondestructive measurement of radiation damage of nuclear reactor pressure vessels. The method relies on good correlation between the levels of radiation-induced hardness change and magnetic coercivity change in pressure vessel steel. A part of the pressure vessel to be inspected is magnetized with two-pole magnetic yokes through the overlay clad of nonmagnetic stainless steel, and magnetic field distributions on the surface of overlay clad are measured in the vicinity of the poles of magnetic yokes. Then, the coercivity distribution in the direction of thickness in the pressure vessel steel is inversely estimated from the measured magnetic field distribution patterns with aid of static magnetic field analysis. The level of radiation damage such as hardness change is assessed with relation to the estimated coercivity distributions. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | A New Method of Nondestructive Measurement for Assessment of Material Degradation of Aged Reactor Pressure Vessels | |
type | Journal Paper | |
journal volume | 118 | |
journal issue | 4 | |
journal title | Journal of Pressure Vessel Technology | |
identifier doi | 10.1115/1.2842212 | |
journal fristpage | 447 | |
journal lastpage | 453 | |
identifier eissn | 1528-8978 | |
keywords | Steel | |
keywords | Radiation (Physics) | |
keywords | Magnetic fields | |
keywords | Pressure vessels | |
keywords | Overlays (Materials engineering) | |
keywords | Poles (Building) | |
keywords | Materials degradation | |
keywords | Nuclear reactors | |
keywords | Stainless steel | |
keywords | Thickness AND Reactor vessels | |
tree | Journal of Pressure Vessel Technology:;1996:;volume( 118 ):;issue: 004 | |
contenttype | Fulltext | |