The microstructure of Ta alloying layer on M50 steel after surface alloying treatment induced by high current pulsed electron beam

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• 作者：Dian Luo^a ; Guangze Tang^b ; ^{oaktang@hit.edu.cn} ; Xinxin Ma^a ; Le Gu^c ; Liqin Wang^c ; Tingbao Wu^d ; Fang Ma^d
• 关键词：High current pulsed electron beam ; Surface alloying ; δ-Fe phase
• 刊名：Vacuum
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：136
• 期：Complete
• 页码：121-128
• 全文大小：3154 K
• 卷排序：136

文摘

The surface allying layer could be divided into three zones with different microstructures. δ-Fe phase, dendritic and spherical microstructure in the surface alloying layer were introduced. The formation of dendritic and spherical microstructure was induced by segregation of Ta. High-temperature mechanical properties were remarkably improved after surface alloying treatment.