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O phase basic Ti22Al27Nb alloy and the production manner
O phase basic Ti22Al27Nb alloy and the production manner
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机译:O相碱性Ti22Al27Nb合金及其生产方式
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摘要
PROBLEM TO BE SOLVED: To provide an O-phase Ti-22Al-27Nb alloy having well balanced tensile strength and ductility, and to provide its production method. ;SOLUTION: The alloy is rolled in an α2+β2 phase temperature region of βtransformation temperature or below, then is held to the same temperature region and is slowly cooled at the cooling rate of ≤1°C/sec to form a bi-modal structure composed of a lamellar structure in which an acicular O phase is precipitated into a β phase matrix and an equi-axed α2 phase uniformly dispersed and precipitated into the β phase matrix.;COPYRIGHT: (C)2001,JPO
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