耐氢氟酸新型铸造合金的组织与腐蚀行为的研究

该文针对氢氟酸(HF)苛刻介质，设计了新型铸造合金，采用金相显微镜、X射线衍射、电子探针(EMPA)、透射电镜(TEM)、扫描电镜(SEM)及扫描隧道显微镜(SIM)，研究了新型铸造合金的组织及其腐蚀行为。试验结果表明，该合金经1200℃固溶处理后，可得到单一的奥氏体组织，具有良好的耐蚀性能。并通过SIM的观测，得到了新型合金的超高分辨三维腐蚀形貌图象，为该合金的开发应用奠定了技术基础。     

新型铸造Ni－Cu合金的成分设计及腐蚀行为的研究

本文设计了新型铸造Ｎｉ－Ｃｕ合金的化学成分，并通过多种腐蚀试验方法研究了该合金的均匀腐蚀、晶间腐蚀及点蚀行为。试验结果表明，铸造Ｎｉ－Ｃｕ合金具有良好的均匀腐蚀与局部腐蚀性能。此外，该合金还具有较好的综合机械性能与铸造性能。     

铸造高合金不锈钢析出相及腐蚀行为的研究

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铸造高合金不锈钢的析出相种类，结构、形貌，分布，成分及基腐蚀行为。试验结果表明，该钢经１１５０℃×２ｈ冷固溶处理后可得到单一的奥氏体组织，并具有优良的均匀腐蚀，晶间腐蚀、点蚀与电化学腐蚀性能。     

Hastelloy B－2型铸造镍基合金的组织及其局部腐蚀行为研究

本文研究了一种能在高温盐酸苛刻介质中服役的低碳低铁型铸造Ｎｉ－Ｍｏ合金的组织及其局部腐蚀行为。通过金相显微镜、Ｘ射线衍射、电子探针和透射电镜与扫描电镜进行了金相组织分析，并采用快速模拟试验方法研究了该合金的局部腐蚀行为。试验结果表明，ＨａｓｔｅｌｌｏｙＢ－２型铸造镍基合金经１１８０℃×２ｈ水冷固溶处理后，其组织为全奥氏体时，该合金具有良好的耐晶间腐蚀性能和较高的抗点蚀性能。     

热处理对双相不锈钢组织与性能的影响

采用金相显微镜（OM）、扫描电镜观察（SEM）、X射线衍射（X—Ray）分析及力学性能测试等研究手段，研究了不同固溶温度对某种新型铸造双相不锈钢组织及力学性能的影响。结果表明：在950—1050℃温度区内固溶处理后，合金的强度、硬度和延伸率随固溶温度的升高而逐渐增大；随着固溶温度的升高，合金的断口形貌从解理断裂逐渐转为准解理断裂。     

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。     

新型铸造高合金不锈钢ZHASS—2

研制了HCl＋AlCl3复合介质泵用铸造高合金不锈钢ZHASS－2（0．02C－18Cr－30Ni－10Mo－3Cu－2．5W）。试验结果表明，1150℃×2h水冷的新型铸造不锈钢在60℃，5％HCl＋25％AlCl3复合介质中具有良好的耐均匀腐蚀、晶间腐蚀和点腐蚀性能。且铸造性能良好。     

新型船舶用铸造铝合金腐蚀性能研究

对比研究了新型铸造铝合金的耐蚀性，其耐海水和盐雾腐蚀性能优异，高于ZL101合金，与ZL305合金相当，应力腐蚀倾向小，优于LZ305合金，已用于船用耐蚀铸件。     

HSHM铸造不锈钢的组织及其腐蚀行为

设计新型ＨＳＨＭ铸造不锈钢的化学成分，采用金相显微镜，Ｘ射线衍射仪和腐蚀试验，研究了该钢的组织及腐蚀行为，试验结果表明ＨＳＨＭ钢经１１５０℃固溶处理后，具有较好的耐稀盐酸蚀性能，较高的抗晶间腐蚀与抗点蚀性能。     

Sc对Al-Mg合金组织和性能的影响

采用金相显微镜，扫描电镜（SEM）和力学性能检测等方法，研究了微量Sc对Al-5%Mg合金显微组织，力学性能和断口形貌的影响，结果表明，添加0．17％Sc的合金铸态组织得到显著细化，枝晶组织在相当程度上得到消除，直到575℃合金仍然保持着大量的变形组织，添加钪的合金在高温退火后可以保留较高的强度，但合金塑性比普通Al-Mg合金要低。     

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.     

Seven Rare Earth Projects Involving Close to 3 Billion Yuan Investment Landed In the HighTech Zone

正On May 22,Baotou Rare Earth Industry Cooperation Consultation MeetingProject Agreement-signing Ceremony was held in Ningbo,nearly 40 enterprises from Ningbo,Guangdong,Hunan,and Shanxi participated in project consultation.After multi-lateral communication,agreements were signed for a total of 7 rare earth projects successfully.