摘要
利用表面机械研磨法对工业纯钛焊接接头的表面进行处理,通过X射线衍射及透射电镜分析,表明经处理后的工业纯钛焊接接头表面晶粒尺寸达到了50nm左右,纳米化深度约30～40μm。显微硬度试验结果表明,经处理后样品表面的硬度有很大提高,焊缝和热影响区的硬度趋于一致。腐蚀试验证明工业纯钛焊接接头经表面纳米化处理,其耐盐酸腐蚀性能有所提高。
The welded joints of commercial pure titanium were treated by surface mechanical attrition treatment. The mean grain sizes of the surface layer were measured by X-ray diffraction and transmission electron microscope. The results show that the mean grain sizes of the surface layer in the weld and heat-affected zone (HAZ) reach the nanometer scale, and the depth of nanocrystallization is about 30-40 μm. The microhardness of the treated weld and HAZ increased obviously. The corrosion tests reveal that the corrosion resistance of the treated weld and HAZ was improved in HCl solution.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2005年第3期73-76,共4页
Transactions of The China Welding Institution
关键词
工业纯钛
表面纳米化
焊接接头
表面机械研磨处理技术
显微硬度
腐蚀
Abrasion
Acid resistance
Grain size and shape
Hydrochloric acid
Microhardness
Nanostructured materials
Surface treatment
Titanium
Transmission electron microscopy
X ray diffraction analysis
