GH2907高温合金热处理工艺

 GH2907

概述：

GH2907是Fe-Ni-Co基沉淀硬化型低膨胀变形高温合金，以添加铌、钛、硅和微量硼毒素进行综合强化。合金在650℃以下具有很高的强度，低的膨胀系数，良好的抗冷热疲劳性能以及几乎不变的弹性模量。居里点在400℃-450℃。居里点以下合金的膨胀系数基本不变。适于制作650℃以下使用的各类航空、航天发动机环形件和机匣，主要产品有棒材、锻件、板材和带材。GH2907化学成分：Ni;37.43Co;12.94Nb;4.77Ti;1.47Al;0.08Si;0.21Mn;0.36密度：8.28GH2907热处理制度制度A：1040℃±10℃保温1小时，空冷或快冷+800℃保温16小时以每小时55℃降温至620℃保温8小时，空冷制度B：980℃±10℃保温1小时，空冷或快冷+775℃保温12小时以每小时55℃降温至620℃保温8小时，空冷应用：合金已用于制作航空发动机高压压气机后机匣、承力环、隔热环、燃烧室封严环、蜂窝座和涡轮外环等零件，使用情况良好。LED">ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" SANdbox="allow-forms 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%2C8%3A134217728%2C9%3A134250504%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32&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=1626055521759&bpp=6&bdt=638&idt=142&shv=r20210701&ptt=9&saldr=aa&cookie=ID%3D4c7ec1640b3c1217-221035914fca00c2%3AT%3D1626055464%3ART%3D1626055464%3AS%3DALNI_Mb_e3IoELulm9nJTEl3dKzKsnokCA&nras=1&correlator=8619864824578&frm=23&ife=1&pv=2&ga_vid=1250968720.1626055522&ga_sid=1626055522&ga_hid=945702019&ga_fc=0&nhd=1&u_tz=480&u_his=15&u_java=0&u_h=768&u_w=1360&u_ah=728&u_aw=1360&u_cd=24&u_nplug=15&u_nmime=33&adx=-12245933&ady=-12245933&biw=1295&bih=597&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&oid=3&pvsid=1939056197352590&pem=341&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php&eae=2&fc=1920&brdim=0%2C0%2C0%2C0%2C1360%2C0%2C1360%2C728%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=32772&bc=31&ifi=1&uci=1.f1na95f7llp8&fsb=1&dtd=163" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.f1na95f7llp8" data-load-complete="true">