论文部分内容阅读
一、前言 0Cr18Nl12Mo6N不锈钢(代号C15)是通过国家“七五”科技攻关项目而研制成功的新型耐氯离子腐蚀不锈钢,现场试验表明:由C15钢制成的6D100-150型注水泵叶轮,用于泵注含有1×10~4ppmCl~-的油田污水,累计开机时间已达20700小时,还在正常运转中,比1Cr18Ni9Ti钢叶轮的寿命提高了8倍以上,经济效益十分明显。本文就C15钢在氯化物介质中的电化学
I. Introduction 0Cr18Nl12Mo6N stainless steel (code C15) is a new type of chloride ion corrosion resistant stainless steel successfully developed through national “75” scientific and technological projects. Field tests show that 6D100-150 type water injection pump impellers made of C15 steel, It is used to pump oilfield wastewater containing 1 × 10 ~ 4ppmCl ~ -, and the accumulated start-up time has reached 20700 hours. In normal operation, the life span of 1Cr18Ni9Ti steel wheel is more than 8 times longer, and the economic benefit is very obvious. In this paper, C15 steel in chloride medium electrochemical