GH4169GH4169特性(xing)(xing)及應用(yong)領(ling)域(yu)概述(shu)：該合(he)(he)金(jin)在-253～700℃溫度(du)(du)(du)范圍(wei)內(nei)具有良(liang)好的(de)(de)(de)(de)綜合(he)(he)性(xing)(xing)能(neng)(neng)(neng)(neng),650℃以(yi)下(xia)的(de)(de)(de)(de)屈服強(qiang)度(du)(du)(du)居變形高溫合(he)(he)金(jin)的(de)(de)(de)(de)首(shou)位,并具有良(liang)好的(de)(de)(de)(de)抗(kang)(kang)疲勞、抗(kang)(kang)輻射、抗(kang)(kang)氧化(hua)、耐腐蝕性(xing)(xing)能(neng)(neng)(neng)(neng),以(yi)及良(liang)好的(de)(de)(de)(de)加工(gong)(gong)性(xing)(xing)能(neng)(neng)(neng)(neng)、焊(han)(han)接性(xing)(xing)能(neng)(neng)(neng)(neng)良(liang)好。能(neng)(neng)(neng)(neng)夠制造(zao)各(ge)種形狀復(fu)雜的(de)(de)(de)(de)零(ling)部件，在宇航、核能(neng)(neng)(neng)(neng)、石油(you)工(gong)(gong)業及擠壓模具中(zhong)(zhong)，在上(shang)述(shu)溫度(du)(du)(du)范圍(wei)內(nei)獲得了極(ji)為(wei)廣泛(fan)的(de)(de)(de)(de)應用(yong)。GH4169相近牌號(hao)：Inconel 718、UNS NO7718(美國(guo))、NC19FeNb(法國(guo))、W.Nr.2.4668(德國(guo))GH4169 化(hua)學(xue)成(cheng)份：（GB/T14992-2005）合(he)(he)金(jin) 牌號(hao)%鎳(nie)Ni鉻(ge)Cr鐵 Fe鉬 Mo鈮(ni)(ni) Nb鈷(gu) Co碳 C錳 Mn硅 Si硫 S銅 Cu鋁 Al鈦 TiGH4169＊小5017余量(liang)2.84.750.200.65**55213.35.501.00.080.350.350.0150.300.801.15GH4169物(wu)理性(xing)(xing)能(neng)(neng)(neng)(neng)：密度(du)(du)(du) g/cm3熔(rong)點 ℃熱(re)導率(lv) λ/(W/m?℃)比(bi)熱(re)容(rong) J/kg?℃彈性(xing)(xing)模量(liang) GPa剪切(qie)模量(liang) GPa電阻率(lv) μΩ?m泊松比(bi)線膨脹系數(shu) a/10-6℃-18.241260132014.7(100℃)435199,977,2---0.311.8(20~100℃)GH4169力學(xue)性(xing)(xing)能(neng)(neng)(neng)(neng)：(在20℃檢測(ce)機械(xie)性(xing)(xing)能(neng)(neng)(neng)(neng)的(de)(de)(de)(de)＊小值(zhi))熱(re)處(chu)理方式抗(kang)(kang)拉強(qiang)度(du)(du)(du)σb/MPa屈服強(qiang)度(du)(du)(du)σp0.2/MPa延伸率(lv)σ5 /%布氏硬度(du)(du)(du) HBS固(gu)溶處(chu)理96555030≥363GH4169生產執行標準(zhun)(zhun)(zhun)：標準(zhun)(zhun)(zhun)化(hua)學(xue)成(cheng)份棒材(cai)鍛(duan)件板材(cai)絲材(cai)管材(cai)國(guo)家(jia)標準(zhun)(zhun)(zhun)GB/T14992GB/T14994GB/T14993GB/T14997GB/T14998GB/T14995GB/T14996YB/T5249GB/T15062航空(kong)工(gong)(gong)業標準(zhun)(zhun)(zhun)HB 6702國(guo)家(jia)軍用(yong)標準(zhun)(zhun)(zhun)GJB 2612 GH4169 金(jin)相組(zu)織結構：該合(he)(he)金(jin)標準(zhun)(zhun)(zhun)熱(re)處(chu)理狀態的(de)(de)(de)(de)組(zu)織由γ基體γ'、γ"、δ、NbC相組(zu)成(cheng)。GH4169工(gong)(gong)藝(yi)性(xing)(xing)能(neng)(neng)(neng)(neng)與(yu)要求(qiu)：1、因GH4169合(he)(he)金(jin)中(zhong)(zhong)鈮(ni)(ni)含(han)量(liang)高,合(he)(he)金(jin)中(zhong)(zhong)的(de)(de)(de)(de)鈮(ni)(ni)偏析程(cheng)度(du)(du)(du)與(yu)治金(jin)工(gong)(gong)藝(yi)直(zhi)接有關。2、為(wei)避(bi)免鋼(gang)(gang)錠(ding)(ding)中(zhong)(zhong)的(de)(de)(de)(de)元素偏析過重，采(cai)用(yong)的(de)(de)(de)(de)鋼(gang)(gang)錠(ding)(ding)直(zhi)徑不大于508mm。3、經均(jun)勻化(hua)處(chu)理的(de)(de)(de)(de)合(he)(he)金(jin)具有良(liang)好的(de)(de)(de)(de)熱(re)加工(gong)(gong)性(xing)(xing)能(neng)(neng)(neng)(neng)，鋼(gang)(gang)錠(ding)(ding)的(de)(de)(de)(de)開坯加熱(re)溫度(du)(du)(du)不得超過1120℃。4、該合(he)(he)金(jin)的(de)(de)(de)(de)晶粒度(du)(du)(du)平均(jun)尺寸與(yu)鍛(duan)件的(de)(de)(de)(de)變形程(cheng)度(du)(du)(du)、終鍛(duan)溫度(du)(du)(du)密切(qie)相關。5、合(he)(he)金(jin)具有滿(man)意的(de)(de)(de)(de)焊(han)(han)接性(xing)(xing)能(neng)(neng)(neng)(neng)，可(ke)用(yong)氬弧焊(han)(han)、電子束焊(han)(han)、縫焊(han)(han)、點焊(han)(han)等方法進行焊(han)(han)接。
