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GH2909是Fe-Ni-Co基沉淀硬化型变形高温合金、使用温度在650℃以下 . 合金具有高强度、高冷热疲劳抗力、低膨胀系数和恒弹性模量、以及良好的热加工塑性、冷成形和焊接性能 . GH2909高温合金已用于制作涡轮发动机用环形零部件、如高压压气机后机匣、承力环、隔热环、燃烧室封严环、蜂窝座和涡轮外环等；火箭发动机推力燃烧室、排气导管和集流箱等 . 还推广应用至制作枪管、炮用部件、玻璃-金属封接材料、量具模具和高压氢气环境用构件等 . 由于此类合金热膨胀系数低、且随温度的变化率小、在很宽的温度循环中可有效地控制发动机部件和静部件的间隙大小、减少燃气损失、节能降耗、提高发动机效率、延长零部件寿命 . 在应用时、合金表面可进行喷丸处理、以提高合金的旋转弯曲高疲劳强度 .周工/TEL：13816166343（微信同号）GH2909高温合金化学成分化学成分（%）合金 C Cr Ni Co Mo Al Ti Fe BGH2909 ≤0.06 ≤1.00 35-40 12-16 - ≤0.15 1.30-1.80 余量 ≤0.012Nb Si Mn P S Cu4.3-5.2 0.25-0.50 1.00 0.015 0.015 0.500冶韩热处理制度制度A：965-1010℃±10℃保温1小时、空冷或快冷+720℃保温8小时以每小时55℃降温至620℃保温8小时、空冷制度B：965-1010℃±10℃保温1小时、空冷或快冷+745℃保温4小时以每小时55℃降温至620℃保温4小时、空冷制度C：980℃±10℃保温1小时、空冷或快冷+745℃保温4小时以每小时55℃降温至620℃保温4小时、空冷密度：8.26PARent;">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&adsid=NT&dt=1597224601363&bpp=2&bdt=143&idt=198&shv=r20200805&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3D8b89ecd30028f70f%3AT%3D1597136729%3AS%3DALNI_MbBM2RyRmC8NPeq2nhyk4kkqUxalQ&nras=1&correlator=4799519629032&frm=23&ife=1&pv=1&ga_vid=55760745.1597224602&ga_sid=1597224602&ga_hid=1214020002&ga_fc=0&iag=3&icsg=42&nhd=1&dssz=4&mdo=0&mso=0&u_tz=480&u_his=20&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%2C21066898&oid=3&pvsid=1739001113425310&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.fj9l365pwujm&fsb=1&dtd=282" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.fj9l365pwujm" data-load-complete="true"> |