ZHOU Weixian Northwestern Polytechnical University
,
Xi′an
,
China
金属学报(英文版)
Based on the experimental data,it was clarified that the plastic strain ratio R-value is not equal to Hill's r-value for Ti sheet.From the non-quadratic orthotropic yield function pro- posed recently by the author,an optimal expression between yield stress and r-value for Ti sheet was developed on overall investigation.The suitable value of exponent in the function seems to be 6—8.Thus,an equation was suggested to estimate strength for the pressure vessel made of Ti sheet.
关键词:
Ti sheet
,
null
,
null
,
null
杜炳谦
,
陈阵
,
余强
,
朱薇
,
李会喜
材料保护
为解决传统锌电积用阳极材料存在的能耗高、污染大、机械强度低、易弯曲等缺陷,以钛为基体,使用WC颗粒掺杂改性,通过直流电镀法制备了Ti/β-PbO2-WC复合电极.通过电化学Tafel曲线、阻抗谱和扫描电镜等考察了温度对电极表面形貌及耐腐蚀性能的影响.结果表明:改性复合电极主要成分为β-PbO2及少量的WC,当电镀温度为60℃时,β-PbO2镀层表面平整、晶粒分布均匀,形状规则,电极具有较小的自腐蚀电流密度和较大的电荷转移电阻,且弥散效应较小,耐蚀性良好.
关键词:
阳极材料
,
Ti/β-PbO2-WC复合电极
,
电化学
,
耐蚀性
,
钛基体
