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GH2907 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、硅和微量硼元素进行综合强化。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恒定不变的弹性模量。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。周工/TEL：13816166343（微信同号）GH2907化学成分元素CCrNiCoAlTiFe质量分数／%≤0.06≤1.035.0-40.012.0-16.0≤0.21.3-1.8余元素NbBSiMnSPCu质量分数／%4.3-5.2≤0.0120.07-0.35≤1.0≤0.015≤0.015≤0.5GH2907物理及力学性能密度熔点8.28g/cm31332-1400℃ 品种热处理抗拉强度σb/MPa屈服强度σp0.2/MPa延伸率δ5/%收缩率Ψ/%棒材环坯环形件制度A≥1070≥655≥5≥5----制度B≥1035≥725≥5≥7.5≥825≥585≥12≥30GH2907热处理制度制度A：1040℃±15℃×l h/AC或快冷+800℃±15℃×16h/FC(55℃/h)→620℃±15℃×8h/AC，适用于钎焊零件：制度B：980℃±15℃×l h/AC或快冷+775℃±15℃×16h/FC(55℃/h)→620℃±15℃×8h/AC，HB 375-302，适用于棒材和环形件。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=29.0.0&pra=5&wgl=1&dt=1597224306629&bpp=4&bdt=45&idt=55&shv=r20200805&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3D8b89ecd30028f70f%3AT%3D1597136729%3AS%3DALNI_MbBM2RyRmC8NPeq2nhyk4kkqUxalQ&nras=1&correlator=1209628595754&frm=23&ife=1&pv=2&ga_vid=1419013262.1597224307&ga_sid=1597224307&ga_hid=1477594040&ga_fc=0&iag=3&icsg=42&nhd=1&dssz=4&mdo=0&mso=0&u_tz=480&u_his=18&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=42530558%2C42530560%2C21066647&oid=3&pvsid=306208110297545&pem=966&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&rx=0&eae=2&fc=1920&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=0.2ecm8wltbwel&fsb=1&dtd=94" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.2ecm8wltbwel" data-load-complete="true"> |