【摘 要】
：
The phenomenon, characteristics and influence factors of dechromisation of a Cu-Cr alloy in acid solutions containing Cl~- were studied by means of metallograph
【机 构】
：
Department Applied Technology,Department of Environmental & Chemical Engineering,Department of Envir
【出 处】
：
Transactions of Nonferrous Metals Society of China
论文部分内容阅读
The phenomenon, characteristics and influence factors of dechromisation of a Cu-Cr alloy in acid solutions containing Cl~- were studied by means of metallographic observation, SEM/EDX, TEM and XRD. The mechanism of dechromisation of Cu-Cr alloy was discussed. The results show that dechromisation of the Cu-Cr alloy occurs at a certain temperature in solutions with H~+ and Cl~- simultaneously. The corrosion starts initially at the interfaces between Cu phase and Cr phase, then develops gradually into the centers of Cr phase. It is also revealed that dechromisation rates of the Cu-Cr alloy increase with increasing concentration of H~+ or Cl~-, and temperature of the solutions.
The phenomenon, characteristics and influence factors of dechromisation of a Cu-Cr alloy in acid solutions containing Cl ~ - were studied by means of metallographic observation, SEM / EDX, TEM and XRD. The mechanism of dechromization of Cu-Cr alloy was discussed. The results show that dechromisation of the Cu-Cr alloy occurs at a certain temperature in solutions with H ~ + and Cl ~ - simultaneously. The corrosion starts initially at the interfaces between Cu phase and Cr phase, It is also revealed that dechromisation rates of the Cu-Cr alloy increase with increasing concentration of H ~ + or Cl ~ -, and temperature of the solutions.
其他文献
1 岑溪三黄鸡 岑溪三黄鸡是广西供应港澳地区的历史名鸡，是广西目前经过严格系统选育没有引进任何外来血缘的优质地方土鸡。它体型小巧、外貌华丽、肉嫩骨细、爱啄好动。1983年荣获国家外贸部荣誉证书。20多年来，有关科研人员对岑溪三黄鸡进行了一系列科技攻关活动，不断提高产品的科技含量及品位，在已完成的七项科研项目中有四项荣获省、部级科技进步奖。1999年起又推行“鸡场 饲养户 客户”的经营管理模式，把
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
如果让你列举几个“垃圾食品”，你会想到什么？我猜，方便面应该是其中之一，很重要的原因是它的添加剂太多了。方便面的配料表上密密麻麻的，少说也有几十种食品添加剂。可有时候咱们还是离不开方便面，比如晚上吃个宵夜，赶飞机没时间吃饭，台风过境停水停电等。那应该怎么选方便面呢？ 答案是：选添加剂种类多的就行了。是不是很意外？“明明我不喜欢食品添加剂，你还让我选食品添加剂多的，没搞错吧？”那我就以最常见的红烧
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
石景山万达广场“厂东门1919”主题购物街 文艺汇演、时尚走秀、硬汉巡游、摇滚老炮音乐节、网红互动直播、一带一路模特大赛…… 似乎近期最为火爆的时尚娱乐活动都集结在了一条新的购物街区 —石景山万达广场“厂东门1919”工业文化主题街区。 时尚的钢铁工业元素 石景山万达广场于2008年正式开业，石景山万达广场的出现填补了石景山区域内的商业空白，经过9年的经营，早已发展成为石景山新的商业
1问题的提出rn我公司新建2000t/d生产线系统采用了φ80m圆形预均化堆场,并采用了由国内某厂生产的混匀式堆取料机.该堆取料机的电控部分采用美国A-B公司的PLC控制系统,堆料机
Al_2O_3/SiO_2 ceramic core nano-composites were prepared and their microstructure was investigated by transmission electron microscope(TEM). The results show th
马尾松(Pinusmassonianalamb. )是我国分布广、数量多的一种松树,在各省森林蓄积量中,马尾松占一半以上.马尾松喜光,要求温暖湿润的气候,对土壤要求不严,能在石砾土、沙质土
Through morphology observation on silicon particles of Al-Si-Cu-Mg cast alloy, it is found that during solution treatment the evolution of eutectic silicon morp