Effect of heat treatment atmosphere on surface recrystallization of a directionally solidified Ni-base superalloy
Effect of heat treatment atmosphere on surface recrystallization of a directionally solidified Ni-base superalloy
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DOI：
10.1016/j.scriptamat.2008.06.032
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发表时间：
2008-10-01
影响因子：
6
通讯作者：
Lou, L. H.
中科院分区：
文献类型：
--
作者：
Xie, G.;Zhang, J.;Lou, L. H.
研究了热处理气氛对定向凝固（DS）高温合金喷丸引起的表面再结晶（RX）的影响。通过淬火实验揭示了空气中 1220 摄氏度热处理过程中表面 RX 和氧化的演变。在空气中热处理的样品的RX深度明显大于在真空中热处理的样品。基于对氧化和RX动力学以及θ之间相互作用的观察，对该机制进行了讨论。 (c) 2008 Acta Materialia Inc. 由 Elsevier Ltd 出版。保留所有权利。
The effect of heat treatment atmosphere on surface recrystallization (RX) induced by shot-peening in a directionally solidified (DS) superalloy was investigated. The evolution of surface RX and oxidation during heat treatment at 1220 degrees C in air was revealed by quenching experiments. The RX depth of samples heat treated in air was apparently larger than those heat treated in vacuum. The mechanism was discussed based on the observation of kinetics of oxidation and RX and interactions between thetas. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.