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以WC-13%Fe/Co/Ni合金作为基体合金,添加少量Al以研究其对WC-13%Fe/Co/Ni硬质合金的性能和组织的影响,结果发现,Al可以细化合金中的WC晶粒,并在提高合金硬度的同时,使其抗弯强度提高100~200MPa,金相研究表明,添加Al的WC-13%Fe/Co/Ni合金中的粘结相主要是γ相和板条马氏体,局部有α+(Fe,Me)3C的片层状组织存在。 相似文献
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高温合金表面激光熔铸镍基合金涂层的组织与耐磨性能 总被引:8,自引:0,他引:8
研究了高温合金GH33表面激光熔铸镍基合金涂层的组织和耐磨性能。结果表明,基材对涂层合金的稀释作用较小;涂层与基材之间形成良好的冶金接合;涂层基体组织为γ-Ni枝晶,枝晶间为γ-Ni、M23(CB)6、Ni3B、Cr2B、CrB、WC等;涂层耐磨性能的平均值较基材提高4倍以上。 相似文献
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用金相、透射电子显微镜、电子探针与扫描电镜分析研究得出超低碳Cr26-Ni28-Mo5-Cu3-Nb0.35不锈钢铸态组织中含有σ相,经850 ̄1120℃热处理均可形成σ相,包括(Fe-Cr)σ相,(Fe-Mo)σ相和(Cr-Ni-Si)σ相,850℃左右有M6C型碳化物和NbC析出。该钢经1150℃2h水冷固溶处理后,具有优良的耐腐蚀性能。 相似文献
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耐蚀合金中钒的直接光度测定梁培德(机械工业部重庆仪表材料研究所,重庆,630700)耐蚀合金多为含钨、钼、铬、钴的镍基或半铁镍基合金。如3YC24(NiMo17Cr16W4),NiMo28,0Cr15Ni26、哈氏B-2及C-276等均含有少量钒。测... 相似文献
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本文采用场离子显微镜原子探针实验技术,对一种马氏体时效钢(Fe-18.2%Ni-8.8%Co-2.9%Mo-0.7%Ti-0.2%Si)的时效析出产物进行了研究。实验研究了该合金在510℃时效4h所产生析出物的形貌与成分,发现有两种金属间化合物相(Ni3Ti与Fe7Mo6型)产生时效强化,在时效组织中还存在有少量回复奥氏体。 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
<正>Recently the National Commission of Development and Reform again assembled experts to solicit opinions,and discussed new electricity reform program.According to information disclosed by experts attending the meeting,in the future electricity reform will undergo top-down design,possibly a 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
正Since the release of Implementation Opinions on Carrying out‘Guiding Opinions of the State Council on Resolving Serious Production Overcapacity Conflicts’,according to the actual situation of industry,Qinghai has focused on electrolytic aluminum,cement,ironsteel(including iron alloy and silicon carbide), 相似文献
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<正>2.Tianjin Scrap Metal Market In Tianjin,we mainly visited Jinghai Ziy Town scrap market and Binhai New Area’some copper scrap enterprises and enterprise using copper scrap.In Ziya we felt the coppe scrap market was particularly deserted,mos copper scrap enterprises in the town wer closed,industry insiders said in 2012 the plac here was bustling with activity.According to 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
正Clearing House Financial Markets Co.,Ltd.(Shanghai Clearing House)General Manager Xie Zhong told the media recently at the briefing of the international symposium of"Reform Deepening and Mechanism Innovation of the Post-crisis Kerb Market",Shanghai Clearing House will explore the feasibility of carrying out bond business in 相似文献
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《China Nonferrous Metals Monthly》2014,(11)
正After over 60 years of developmnt,a system for RD and production of copper processing materials has already taken shape in China.After the reform and opening-up,the application of copper processing materials has gradually expanded from the military industry to civil field.The annual output of copper 相似文献
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《China Nonferrous Metals Monthly》2014,(11):1-2
<正>According to a survey report conducted recently by China Geological Survey Development Research Center,in the first half of 2014,China’s mineral exploration market continued to decline,with the investment in exploration of non-fuel minerals dropping by13.7%and drilling workload dropping by21.7%.According to statistical analysis of the Center, 相似文献
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正Aluminum alloy cable is a mature product and technology that has been used for nearly fifty years in the U.S.Through six years’promotion,it has been widely recognized and accepted in the China market since 2013,which laid the foundation for the development of the aluminum alloy cable market.Aluminum alloy cable is widely applied in the fields of civil construction and industrial and mining enterprises,especially in real estate,steel and metallurgy. 相似文献
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正At 2014 China Qinghai Trade Fair for Green Development Investment,Qinghai EV Rally2014 was introduced for the first time.With electrical vehicles’eco-friendly features,Qinghai manifested its determination on green development.Introducing Qinghai EV Rally was just a signal.By leveraging its rich salt lake resources 相似文献