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inconel718鈦及鎳基合金-英科乃爾|Incone
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[1]。該合金需經(jīng)固溶處理（980°C-1200°C）溶解強化相以優(yōu)化塑性，并通過時效處理（620°C-720°C）沉淀析出強化相提高強度。加工時因硬化程度達200%-500%，需采用低切削速度（20-30m/min）及專用刀具，以減少刀具損耗及成本 [2]。中文名Inconel 718合金外文名UNS N07718密 度8.24 g/cm3熔 點1260 至 1320 ℃目錄1化學成分2物理和機械3特性4金相結構5耐腐蝕性6應用范圍領域化學成分播報編輯合金%鎳鉻鐵鉬鈮碳錳硅硫銅鋁鈦硼GH4169最小5017余量2.84.75-0.200.65-最大55213.35.500.080.350.350.0150.300.801.150.006物理和機械播報編輯Inconel718合金的物理性能:密度8.24 g/cm3熔點1260-1320 ℃Inconel718合金在常溫下合金的機械性能的最小值:合金抗拉強度Rm N/mm2屈服強度Rp0.2 N/mm2延伸率A5 %布氏硬度 HB固溶處理96555030≥363特性播報編輯1.易加工性2.在700℃時具有高的抗拉強度、疲勞強度、抗蠕變強度和斷裂強度3.在1000℃時具有高抗氧化性4.在低溫下具有穩(wěn)定的化學性能5.良好的焊接性能 [1]金相結構播報編輯GH4169合金為奧氏體結構，沉淀硬化后生成的γ”相使之具有了優(yōu)秀的機械性能。在熱處理過程中于晶界處生成的δ相使之具有了最佳的塑性。耐腐蝕性播報編輯不管在高溫還是低溫環(huán)境，Inconel718合金都具有極好的耐應力腐蝕開裂和點蝕的能力。Inconel718合金在高溫下的抗氧化性尤其出色。 [1]應用范圍領域播報編輯由于在700℃時具有高溫強度和優(yōu)秀的耐腐蝕性能、易加工性，Inconel718合金可廣泛應用于各種高要求的場合。1.汽輪機2.液體燃料火箭3.低溫工程4.酸性環(huán)境5.核工程新手上路成長任務編輯入門編輯規(guī)則本人編輯我有疑問內(nèi)容質(zhì)疑在線客服官方貼吧意見反饋投訴建議舉報不良信息未通過詞條申訴投訴侵權信息封禁查詢與解封?2025?Baidu?使用百度前必讀?|?百科協(xié)議?|?隱私政策?|?百度百科合作平臺?|?京ICP證030173號?京公網(wǎng)安備11000002000001號window.PAGE_DATA= 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718INCONEL 718合金是以體心四方的γ"和面心立方的γ′相沉淀強化的鎳基高溫合金，在-253～700℃溫度范圍內(nèi)具有良好的綜合性能,650℃以下的屈服強度居變形高溫合金的首位,并具有良好的抗疲勞、抗輻射、抗氧化、耐腐蝕性能,以及良好的加工性能、焊接性能和長期組織穩(wěn)定性，能夠制造各種形狀復雜的零部件，在宇航、核能、石油工業(yè)中，在上述溫度范圍內(nèi)獲得了極為廣泛的應用。 該合金的另一特點是合金組織對熱加工工藝特別敏感，掌握合金中相析出和溶解規(guī)律及組織與工藝、性能間的相互關系，可針對不同的使用要求制定合理、可行的工藝規(guī)程，就能獲得可滿足不同強度級別和使用要求的各種零件?？芍瞥杀P、環(huán)、葉片、軸、緊固件和彈性元件、板材結構件、機匣等零部件在航空上長期使用。 Inconel718鎳基合金 在－253～700℃溫度范圍內(nèi)具有良好的綜合性能，650℃以下的屈服強度居變形高溫合金的首位，并具有良好的抗疲勞、抗輻射、抗氧化、耐腐蝕性能，以及良好的加工性能、焊接性能和長期組織穩(wěn)定性。成分規(guī)范 該合金的化學成分分為3類：標準成分、優(yōu)質(zhì)成分、高純成分，優(yōu)質(zhì)成分的在標準成分的基礎上降碳增鈮，從而減少碳化鈮的數(shù)量，減少疲勞源和增加強化相的數(shù)量，提高抗疲勞性能和材料強度。同時減少有害雜質(zhì)和氣體含量。高純成分是在優(yōu)質(zhì)標準基礎上降低硫和有害雜質(zhì)的含量，提高材料純度和綜合性能。 核能應用的INCONEL 718合金，需控制硼含量（其他元素成分不變），具體含量由供需雙方協(xié)商確定。當ω（B）≤0.002%時，為與宇航工業(yè)用的INCONEL 718合金加以區(qū)別，合金牌號為INCONEL 718A。 Inconel718高溫合金特性1.在700℃時具有高的抗拉強度、疲勞強度、抗蠕變強度和斷裂強度2.在1000℃時具有高抗氧化性3.在低溫下具有穩(wěn)定的化學性能4.良好的焊接性能Inconel718高溫合金棒應用領域a 航空發(fā)動機中部件b 核能工業(yè)各種彈性元件和格架c 石油領域應用的零件d 化工工業(yè)e 核工程 PRODUCT PARAMETERS 產(chǎn)品參數(shù) Inconel718 的化學成分: 合金%鎳鉻鐵鉬鈮鈷碳錳硅硫銅鋁鈦718min5017余量2.84.750.20.7max55213.35.510.080.350.350.010.30.81.15 Incoloy718的物理性能:密度8.2 g/cm3熔點1260-1340 ℃ 在常溫下合金的機械性能:合金抗拉強度Rm N/mm2屈服強度RP0.2N/mm2延伸率A5 %布氏硬度 HB固溶處理96555030≤363 上一頁：N07718
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