美国进口镍基高温合金Inconel740板inconel740H棒化学成分 700C超超临界燃煤电站用镍基高温合金Inconel740合金是美国SMC在上世纪末专门为欧洲的700超超临界燃煤发电技术项目开发的一种新型镍基高温合金。740合金是一种镍-铬-钴超合金,通过伽马主次相的沉淀得到时效硬化。740合金在时效强化后,在温度不超过850摄氏度时,表现出非常优异的高温强度,由于有高含量的铬和钴,这就使740合金在高温下有着非常好的抗氧化、碳化和硫化的性能。Inconel 740化学成分C:0.03Cr:25.0Co:20.0Mo:0.5Al:0.9Ti:1.8Inconel740物理性能密度:ρ=8.05g/cm3熔化温度范围:12881362 电阻率:ρ=1.168*10-6Ω.m用途:inconel 740合金专用于高级发电厂炉管。Inconel 740合金在高温长期时效时合金的微观组织达到平衡状态,因此得出结论20,000小时的蠕变试验可充分说明合金的长期蠕变性能.Inconel 740合金在950的静态空气中氧化时,氧化动力学遵循抛物线规律,氧化膜黏附性能良好,表面氧化膜完整,外层由Cr2O3和少量的(Ni,Co)Cr2O4、TiO2组成,中间层为SiO2和Al2O3,内层氧化物为Al2O3和TiO2;合金在750含有10水蒸气的空气中的腐蚀动力学也近似遵从抛物线规律,表面氧化膜很薄且致密性较差,表面氧化层主要为Cr2O3,内层氧化物为Al2O3和TiO2.欢迎您的来电咨询!周工/TEL:13816166343(微信同号)PARent;">ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" SANdbox="allow-forms allow-pointer-lock allow-popUPS allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A32776%2C2%3A32776%2C9%3A32776%2C10%3A32%2C11%3A32%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32%2C40%3A32&guci=2.2.0.0.2.2.0.0&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=32.0.0&pra=5&wgl=1&dt=1598422573241&bpp=6&bdt=48&idt=34&shv=r20200820&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3D86f297dbb2e2ca2c%3AT%3D1598421843%3AS%3DALNI_MZIHNO9fbrrsh93AHEvg4rGCbYBhg&nras=1&correlator=5753053297333&frm=23&ife=1&pv=2&ga_vid=2089630386.1598422573&ga_sid=1598422573&ga_hid=965489659&ga_fc=0&iag=3&icsg=42&nhd=1&dssz=4&mdo=0&mso=0&u_tz=480&u_his=28&u_java=0&u_h=768&u_w=1360&u_ah=728&u_aw=1360&u_cd=24&u_nplug=16&u_nmime=34&adx=-12245933&ady=-12245933&biw=1295&bih=597&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=21067034%2C44725624%2C21066806&oid=3&pvsid=1344295663572813&pem=605&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D-1&rx=0&eae=2&fc=1664&brdim=0%2C0%2C0%2C0%2C1360%2C0%2C1360%2C728%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8204&bc=31&ifi=0&uci=0.u0lq3mfu2TPV&fsb=1&dtd=68" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.u0lq3mfu2tpv" data-load-complete="true"> |