Effects of La Microalloying on Microstructure Evolution of Pure Copper

作者: Jin Hu Wu , Shi Hong Zhang , Yan Chen , Hai Hong Li , Jin Song Liu

DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.898.361

关键词:

摘要: The absorptivity of La in pure copper and the effects microalloying on microstructure evolution were studied by adding different contents to under vacuum condition. ingots with synthetically analyzed means optical microscope (OM) scanning electron (SEM), content was tested using inductively coupled plasma-atomic emission spectrometry (ICP-AES). results showws that more than 90% condition burning rate mainly determinated autoxidation reaction impurity elements copper. ingot refined addition. columnar equiaxed transition (CET) occured 0.14% addition full grains when 0.16%. CET mechanism constitutional supercooling melt increased tensile strength alloys could be improved slightly, while elongation decreased a little after alloying.

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