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| EFFECT OF CASTING TEMPERATURE AND MACROSTRUCTURE ON HYDROGEN-INDUCED CRACKING OF TYRE |
| Xuechong Ren;; |
| 北京科技大学材料科学与工程学院 |
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Cite this article:
Xuechong Ren. EFFECT OF CASTING TEMPERATURE AND MACROSTRUCTURE ON HYDROGEN-INDUCED CRACKING OF TYRE. Acta Metall Sin, 2007, 43(2): 149-153 .
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Abstract The effect of macrostructure and casting temperature on susceptibility to hydrogen flaking、the fracture toughness, KIQ, and threshold stress intensity factor of hydrogen induced delayed cracking, KIH, have been investigated. The result shows that casting temperature can influence the susceptibility to hydrogen flaking, which of the last billet is higher then that of the first billet. There is evident effect of macrostructure on the susceptibility to hydrogen flaking, which is the maximum in thezone of cylindrical grain and the minimum in the zone of equal-axis grain. There are no effect of the macrostructure and casting temperature on hydrogen diffusivity, Da, the fracture toughness, KIQ, and the threshold stress intensity factor of hydrogen-induced delayed cracking, KIH.
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Received: 24 April 2006
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