外文翻译-传统黄铜与无铅黄铜中的相分布.zip

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本文中探讨了传统黄铜与含Bi无铅黄铜的相分布。Bi在纯铜中强烈偏析于晶界处，而在黄铜晶界处没有观察到Bi元素分布。研究中发现黄铜晶界中存在过量的锡，由此阻碍了Bi的析出。
关键词：晶界偏析；晶界脆化；铜合金；能量色散X射线分光计（EDXS）；透射电子显微镜（STEM)；无铅黄铜；环境黄铜

Abstract
Compositional distributions in a classical brass and a lead-free brass containing bismuth have been measured. Bismuth
segregates strongly to the grain boundaries in pure copper but was not observed at the boundaries in the brass. An excess
concentration of tin at the grain boundaries due to coring was observed and prevents the segregation of bismuth.
© 2006 Elsevier Inc. All rights reserved.
Keywords: Grain boundary segregation; Grain boundary embrittlement; Copper alloys; Energy dispersive X-ray spectroscopy (EDXS); Scanning/
transmission electron microscopy (STEM); Brass lead free; EnviroBrass©