采用搅拌摩擦加工方法在Ti-6Al-4V（TC4）钛合金表面成功制备了载银层，研究了银在载银层中形貌、分布及其对载银层力学性能的影响。结果表明：采用此方法可制备厚度700
μm左右的载银层；在载银层的表层可观察到大量平均尺寸为10 nm左右的银纳米晶，这是由于表面强烈的搅拌剪切力产生了机械纳米化现象；在载银层的次表层内析出了银颗粒，银颗粒与基体以共格或半共格界面连接，不会产生游离的银颗粒；均匀分布的银颗粒使得载银层的表面硬度比基体的提高了约30%，但对基体的弹性模量几乎没有影响。
所属栏目
材料性能及应用国家自然科学基金资助项目（51302168）；九江市科技计划项目；上海交通大学医工交叉基金资助项目（YG2014MS02）
收稿日期
2016/1/42017/3/21
作者单位
张金凯:金属基复合材料国家重点实验室, 上海 200240
程萌旗:附属第六人民医院, 上海 201101
魏兴乔:中国船舶重工集团公司707 研究所九江分部, 九江 332007
伍来智:中国船舶重工集团公司707 研究所九江分部, 九江 332007
王立强:金属基复合材料国家重点实验室, 上海 200240
吕维洁:金属基复合材料国家重点实验室, 上海 200240
备注
张金凯(1990-),男,湖南益阳人,硕士研究生
引用该论文:
ZHANG Jinkai,CHENG Mengqi,WEI Xingqiao,WU Laizhi,WANG Liqiang,LÜ,Weijie.Microstructure and Mechanical Properties of Silver-Loaded Layer on Surface of TC4 Alloy Prepared by Friction Stir Processing[J].Materials for mechancial engineering,2017,41(6):63～68
张金凯,程萌旗,魏兴乔,伍来智,王立强,吕维洁.搅拌摩擦加工制备TC4钛合金表面载银层的组织形貌和力学性能[J].机械工程材料,2017,41(6):63～68
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