新型低镍铸造不锈钢DSS—1的组织和磨蚀性

具有双相组织的新型铸造不锈钢DSS－1（0．5C－2Si－1．5Mn－25Cr－5．5Ni－2Mo－2．5Cu）,在含有固相颗粒的高温碱介质中具有良好的耐腐蚀与耐磨腐蚀性能。此外,该钢还具有较好的力学性能和铸造性能。     

新型高合金不锈钢的组织与性能研究

设计了用于硫酸介质的新型高合金不锈钢的化学成分，采用金相显微镜，Ｘ－射线衍射，透射电镜，电子探针显微分析手段和多种腐蚀试验方法研究了析出相的种类成分，结构，形貌，分布和钢的耐蚀性能。研究结果表明，钢经１１５０℃固溶处理可得到单相奥氏体组织，在２０％－８０％Ｈ２ＳＯ４，温度为８０℃的硫酸介质中具有优良的耐蚀性和良好的综合机械性能与铸造性能。     

耐硫酸复合介质的铸造不锈钢组织与腐蚀行为的研究

对含５０％Ｈ２ＳＯ１，１０％ＨＮＯ３，温度８５℃的硫酸复合介质，设计了新型铸造不锈钢的化学成分，研究了此钢种的组织及其腐蚀行为。     

铸造超低碳镍基合金的含铬量对其组织与性能的影响

设计了耐盐酸复合介质的新型铸造超低碳镍基合金的化学成分，着重研究了含铬量对其组织与腐蚀行为的影响。试验结果表明，含有15％Cr的超低碳铸造Ni-Cr-Mo-Fe合金，在苛刻的盐酸复合介质中具有优良的耐蚀性能，并具有良好的机械性能、切削加工性能与铸造性能。     

0．03C－4．5Si－14Cr－8Ni双相铸造不锈钢的组织和耐蚀性

本文对所设计的０．０３Ｃ－４．５Ｓｉ－１４Ｃｒ－８Ｎｉ（ＤＬＮＧＧ）双相铸造不锈钢进行了组织和耐蚀性研究。试验结果表明，该钢经１０５０℃１．５ｈ水冷固溶处理后，得到铁素体－奥氏体双相组织，在浓硫酸介质中有良好的耐蚀性能。     

铬锰氮不锈钢在5%H2SO4水砂介质中的腐蚀磨损研究

铬锰氮不锈钢在５％Ｈ２ＳＯ４水砂介质中腐蚀磨损试验，结果表明，新型铸造铬锰氮不锈钢较１Ｃｒ１８Ｎｉ９Ｔｉ（１８－８）和０Ｃｒ１８１２Ｍｏ２Ｔｉ（Ｍｏ２Ｔｉ）钢具有更佳的抗腐蚀磨损性能。本文对腐蚀磨损过程中腐蚀与磨损的交互作用作了深入探讨，从而提出了腐蚀磨损条件下材料流失的判据。     

低碳HastelloyA型铸造镍基合金的组织与性能的研究

本文采用多种试验方法研究了低碳Ｈａｓｔｅｌｌｏｙ　Ａ型铸造镍基合金的组织与性能，着重研究了其腐蚀行为。试验结果表明，低碳Ｈａｓｔｅｌｌｏｙ Ａ合金在３６％ＨＣ１，５０℃的苛刻介质中，具有良好的耐蚀性，并具有较好的抗晶间腐蚀、点蚀与电化学腐蚀性能。此外，该合金还具有良好的综合机械性能与铸造性能。     

含氯废塑料脱氯反应器内衬材质研究

含氯废塑料在脱氯过程中会产生大量的HCl气体，而HCl具有很强的腐蚀性。本文对（00Crl7Ni14Mo3（316L），0Cr18Ni9Ti（321），1Cr18Ni9（302））奥氏体不锈钢和紫铜4种金属材料及Al2O3陶瓷进行抗HCl气体腐蚀实验，对实验前后的试样进行扫描电镜（SEM）和光谱（EDS）分析，并对Al2O3陶瓷进行了抗热震性实验。结果表明，在4种金属材料中316L不锈钢的抗HCl气体的腐蚀性能最好，通过正交试验研制的Al2O3陶瓷具有良好的抗HCl气体腐蚀性和抗热震性,完全符合含氯废塑料脱氯反应器内衬材质性能要求。     

复合添加Lu2O3和Er2O3对镍氢电池Ni(OH)2正极高温性能的影响

通过在镍氢电池NKOH）2正极中复合添加稀土氧化物Lu2O3和Er2O3，研究了稀土氧化物的复合添加对Ni（OH）2正极高温性能的影响。充放电循环实验表明复合添加不同含量的Lu2O3和Er2O3都能够不同程度地提高正极高温充电效率。在55，60，65℃下，添加2．5％Lu2O3＋1．5％Er2O3的正极充电效率最高。循环伏安测试表明，复合添加2．5％Lu2O3＋1．5％Er2O3能够较为明显的提高Ni（OH）2正极在高温环境下的析氧副反应电位，进而提高了电极在高温环境下的充电效率。     

耐海水腐蚀高压气阀研制

摘要：以含25％Cr的双相不锈钢和镍基高温合金为主体材料制成了25MPa高压气阀，解决了因耐压性能提高而造成的气阀体积放大问题；测试了阀件的液压密封性能和气压密封性能，耐1000次开启及关闭的疲劳性能，以及双相不锈钢和镍基高温合金同镍黄铜或铝青铜等材料组合使用的接触腐蚀性能；结果表明，气阀材料具有良好的耐海水腐蚀性能，在35℃的人造海水(3．5％的Nacl水溶液)中腐蚀失重率仅为0．002-0．005∥m^2·hr，接触腐蚀的影响也不明显。选用双相不锈钢和镍基高温合金材料制作高压气阀为设计具有更高耐压性能的阀件提供了一种新的途径。     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.