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| TEXTURE OF HYDROSTATICALLY EXTRUDED Zr-2.5% Nb ALLOY TUBE |
| WANG Chaoqun; ZHENG Jie (Beijing General Research Institute of Non-Ferrous Metals) |
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Cite this article:
WANG Chaoqun; ZHENG Jie (Beijing General Research Institute of Non-Ferrous Metals). TEXTURE OF HYDROSTATICALLY EXTRUDED Zr-2.5% Nb ALLOY TUBE. Acta Metall Sin, 1986, 22(5): 142-145.
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Abstract The pole figure and inverse pole figure of the hydrostatically extruded Zr-2.5%Nb alloy tube with various Q values (the reduction ratio of wall thickness to diameter) were examined by X-ray diffration. It is resulted that the texture parameter, V_48 is related linearly to Q value. The texture gradient along the direction of tube wall thickness seems to be no appreciable. When the Q value changes from 0.2 to 2.59, the hydride is distributed into a circular direction via radial, and the corresponding texture parameter V_48 decreases from 0.53 to 0.28.The circular hydride distribution may be re-orientated under circular tensile stress after cyclic heat-treatment. The threshold of the stress re-orientaton of hydrideis rather high for tube with radial basal pole texture.
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Received: 18 May 1986
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1 Harris, G.B., Philos. Mag., 43(1952) , 113．
2 Kearns, J.J., WAPD-TM-470． (1965) .
3 Hardie, D.; Shanan, M.W., J. Nucl Mater. 55(1975) , 1． |
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