Cavitation erosion behavior of nickel-aluminum bronze weldment

被引：0
|
作者：
李小亚
闫永贵
许振明
李建国
机构：
[1] China
[2] College of Materials Science and Engineering
[3] Hebei University of Science and Technology
[4] Luoyang Ship Materials Research Institute
[5] Qingdao 266071
[6] Qingdao Branch
[7] Shanghai 200030
[8] Shijiazhuang 050054
[9] State Key Laboratory for Marine Corrosion and Protection
[10] State Key Laboratory of Metal Matrix Composites
[11] State Key Laboratory of Metal Matrix Composites Shanghai Jiaotong University
来源：
Transactions of Nonferrous Metals Society of China | 2003年 / 06期
关键词：
NAB; weldment; tungsten inert gas welding(TIG); cavitation erosion;
D O I：
暂无
中图分类号：
TG172.9 [其他腐蚀];
学科分类号：
080503 ;
摘要：
Cavitation erosion behavior of nickel-aluminum bronze(NAB) weldment in 3.5% NaCl aqueous solution was studied by magnetostrictive vibratory device for cavitation erosion. The results show that cavitation erosion resistance of the weld zone(WZ) of the weldment is superior to that of the base metal. SEM observation of eroded specimens reveals that the phases undergoing selective attack by the stress of cavitation erosion at the early stage of cavitation erosion are: martensite in the WZ, α phase in the heat-affected zone(HAZ) and eutectoidal phase in the base metal; the microcracks causing cavitation damage initiate at the phase boundaries.
引用
收藏
页码：1317 / 1324
页数：8
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