GH3030

1.1 概述

GH3030是NiCr基固溶(rong)強(qiang)化(hua)型變形高溫合(he)(he)金,使(shi)用(yong)溫度在(zai)800℃以下。合(he)(he)金具有(you)較好的熱強(qiang)性和(he)高塑性、以及(ji)抗(kang)冷(leng)熱疲勞和(he)抗(kang)氧(yang)化(hua)性能,并具有(you)良好的冷(leng)沖壓和(he)焊(han)接工藝性能。合(he)(he)金經過(guo)固處(chu)理后為單相奧(ao)氏體,使(shi)用(yong)過(guo)程中組織穩(wen)定。主要用(yong)于800℃以下工作的渦(wo)輪發動機燃燒室部(bu)件(jian)(jian),在(zai)1100℃以下要求抗(kang)氧(yang)化(hua)但承受載(zai)荷小的高溫零部(bu)件(jian)(jian)。主要產品有(you)冷(leng)軋板、材、環件(jian)(jian)、絲材和(he)管材等(deng)。

1.2 應用概況及特性(xing)合(he)金(jin)已(yi)用于(yu)制作航空發(fa)動機燃燒室(shi)(shi)、加(jia)力燃燒室(shi)(shi)以(yi)及機匣安裝邊等零部(bu)件。合(he)金(jin)焊(han)(han)接性(xing)能(neng)優(you)良,可進行氬弧焊(han)(han)、點(dian)焊(han)(han)、縫焊(han)(han)或釬焊(han)(han)。生產中如固溶溫度(du)偏低,會(hui)保留殘余碳化物形成(cheng)的老晶界。

1.3 材料牌號

GH3030(GH30)

1.4 相(xiang)近牌(pai)號

9H435、XH78T(俄)

1.5 材料技術標準

GB/T14992 高溫(wen)合(he)金和金屬間化合(he)物(wu)高溫(wen)材(cai)料的(de)分類和牌(pai)號

GB/T14994高溫(wen)合金冷(leng)拉材

GB/T14995高溫(wen)合金熱板

GB/T14996高溫(wen)合金冷(leng)板

GB/T15062一般用高(gao)溫合金管

GJB1952A航(hang)空用高溫合金冷軋板規范

GJB2297A航空用高溫合金冷拔(軋(ya))無縫管(guan)規范

GJB2611A航空用高溫合金冷拉棒材規范

GJB2612焊接用高溫合金冷拉絲材規范

GJB3020A 航空用(yong)高(gao)溫合金(jin)環坯(pi)規范

GJB 3165A航空承力(li)件用(yong)高(gao)溫合金熱軋和鍛(duan)制棒材(cai)規范(fan)

GJB3167A 冷(leng)用(yong)高溫(wen)合金冷(leng)拉絲材規范

GJB3317A 航空用高溫合金熱軋板規范

GJB 3318A航空(kong)用高溫合(he)金冷(leng)軋帶(dai)板規范(fan)

HB/Z 140航空(kong)用高溫合金熱處理工藝

YB/T5245普(pu)通承(cheng)力件用高溫合金熱軋和(he)鍛(duan)制(zhi)棒材

1.6 熔(rong)煉工藝采用電(dian)弧(hu)(hu)爐(lu)、或(huo)(huo)(huo)非真空(kong)(kong)(kong)感(gan)應(ying)爐(lu)、或(huo)(huo)(huo)電(dian)弧(hu)(hu)爐(lu)十(shi)(shi)電(dian)渣重(zhong)(zhong)熔(rong)、或(huo)(huo)(huo)電(dian)弧(hu)(hu)爐(lu)十(shi)(shi)真空(kong)(kong)(kong)電(dian)弧(hu)(hu)重(zhong)(zhong)熔(rong)、或(huo)(huo)(huo)非真空(kong)(kong)(kong)感(gan)應(ying)爐(lu)十(shi)(shi)電(dian)渣重(zhong)(zhong)熔(rong)、或(huo)(huo)(huo)非真空(kong)(kong)(kong)感(gan)應(ying)爐(lu)十(shi)(shi)真空(kong)(kong)(kong)電(dian)弧(hu)(hu)重(zhong)(zhong)熔(rong)、或(huo)(huo)(huo)真空(kong)(kong)(kong)雙聯熔(rong)煉工藝。

1.7 化(hua)學成分摘自GB/T14992,雜質元(yuan)素分析有區別的摘自GB/T14994、GB/T14995、GB/T14996、GJB1952AGJB2297A、GJB2611A、GJB3167A和GJB 3317A,

見表(biao) 1-1。

1.8 熱處理制(zhi)度

摘自HB/Z140,各品種(zhong)的標(biao)準熱處理制度為:a)冷軋板材,(980~1020)℃/AC,其中8<3mm,保(bao)(bao)溫(wen)(8~12)min;83mm~5mm,保(bao)(bao)溫(wen)(12~16)min;b)絲材,(980~1020)℃/WQ 或 AC,其中 d<3mm,保(bao)(bao)溫(wen)(8~12)min;d3mm~5mm,保(bao)(bao)溫(wen)(12~16)min;

c)管材，(980~1020)℃/WQ;

d)冷拉棒材,(980~1000)℃/WQ或AC;

e)鍛件,(990~1010)℃x(2~3)h/AC;

f)焊(han)接件,(990~1020)℃/AC,其中 8(d)<3mm,保溫(wen)(8~12)min;8(d)3mm~5mm,保溫(wen)(12~16)min

1.9 品(pin)種規格與供(gong)應(ying)狀(zhuang)態

1.9.1 主要規格d8mm~300mm 棒(bang)材;84mm~14mm 熱軋(ya)板(ban)材;80.5mm~4mm冷(leng)軋(ya)板(ban)材;80.1mm~0.8mm 冷(leng)軋(ya)帶材;外徑(jing)<50mm的冷(leng)拔(軋(ya))無縫管;d0.2mm~10.0mm冷(leng)拉絲材;各種(zhong)尺寸規格的環形(xing)件和鍛(duan)件。

1.9.2 供(gong)應狀(zhuang)(zhuang)(zhuang)態(tai)熱軋(ya)和(he)鍛制棒材(cai)一(yi)(yi)般不(bu)經(jing)熱處理,磨(mo)光或(huo)(huo)(huo)(huo)車光后(hou)(hou)供(gong)應;冷(leng)拉(la)棒以(yi)退火、或(huo)(huo)(huo)(huo)退火+酸(suan)(suan)洗、或(huo)(huo)(huo)(huo)退火+磨(mo)光或(huo)(huo)(huo)(huo)冷(leng)拉(la)狀(zhuang)(zhuang)(zhuang)態(tai)供(gong)應;熱軋(ya)板(ban)材(cai)經(jing)固(gu)溶(rong)(rong)(rong)+堿(jian)酸(suan)(suan)洗+平整十切邊(bian)(bian)后(hou)(hou)供(gong)應;冷(leng)軋(ya)板(ban)材(cai)經(jing)固(gu)溶(rong)(rong)(rong)+堿(jian)酸(suan)(suan)洗+平整+矯直+切邊(bian)(bian)后(hou)(hou)供(gong)應;冷(leng)軋(ya)帶(dai)材(cai)經(jing)固(gu)溶(rong)(rong)(rong)+堿(jian)酸(suan)(suan)洗+平整十切邊(bian)(bian)成卷供(gong)應;冷(leng)拔管材(cai)經(jing)固(gu)溶(rong)(rong)(rong)+酸(suan)(suan)洗后(hou)(hou)供(gong)應、或(huo)(huo)(huo)(huo)冷(leng)拔(軋(ya))狀(zhuang)(zhuang)(zhuang)態(tai)供(gong)應;焊絲(si)以(yi)冷(leng)拉(la)狀(zhuang)(zhuang)(zhuang)態(tai)、或(huo)(huo)(huo)(huo)固(gu)溶(rong)(rong)(rong)+酸(suan)(suan)洗、或(huo)(huo)(huo)(huo)半(ban)硬化狀(zhuang)(zhuang)(zhuang)態(tai)成盤(pan)(pan)狀(zhuang)(zhuang)(zhuang)供(gong)應;冷(leng)鐓用絲(si)材(cai)以(yi)冷(leng)拉(la)狀(zhuang)(zhuang)(zhuang)態(tai)、或(huo)(huo)(huo)(huo)固(gu)溶(rong)(rong)(rong)+酸(suan)(suan)洗、或(huo)(huo)(huo)(huo)固(gu)溶(rong)(rong)(rong)+磨(mo)光,成盤(pan)(pan)狀(zhuang)(zhuang)(zhuang)或(huo)(huo)(huo)(huo)直條狀(zhuang)(zhuang)(zhuang)供(gong)應;環形件和(he)鍛件一(yi)(yi)般不(bu)經(jing)熱處理供(gong)應。

鋼錠鍛(duan)造開(kai)坯(pi)裝爐溫(wen)(wen)(wen)度(du)不高于800℃,加(jia)熱溫(wen)(wen)(wen)度(du)為(wei)1160℃~1200℃,終鍛(duan)溫(wen)(wen)(wen)度(du)不低于900℃,一(yi)次(ci)加(jia)熱的變形程度(du)為(wei)50%;板(ban)材熱軋加(jia)熱溫(wen)(wen)(wen)度(du)為(wei)1040℃~1100℃,冷軋變形量大于30%。

4.3 焊(han)接性能

氬弧焊(han)(han)時(shi)熔(rong)池流動性和成(cheng)形性能均良(liang)好,裂紋傾向性小(xiao);點焊(han)(han)和縫(feng)焊(han)(han)時(shi)有(you)較寬的規范參數范圍,核心縮(suo)孔較小(xiao),一般(ban)無裂紋及(ji)結合線伸(shen)人。該合金可與1Cr18Ni9Ti、GH1140、GH3039、GH3044、GH3128等(deng)合金組(zu)合進行焊(han)(han)接。

4.4 零(ling)件熱處(chu)理工藝

航(hang)空(kong)工廠零件的(de)中間熱處(chu)理(li)和最終(zhong)熱處(chu)理(li)制度為:1000℃X(5~10)min/AC或WQ。如需(xu)要零件具有高(gao)的(de)熱強性,可將(jiang)最終(zhong)固(gu)溶處(chu)理(li)溫(wen)度提高(gao)到1150℃]。

熱處理(li)后,零件表(biao)面(mian)的(de)(de)氧化(hua)皮(pi)可用(yong)吹砂(sha)或酸洗(xi)方(fang)法清除。酸洗(xi)時(shi)采用(yong)HF-H,SO,-HNO、水溶(rong)液的(de)(de)單4.5 表(biao)面(mian)處理(li)工藝一酸洗(xi)工藝,也可采用(yong) NaOH-NaNO:和 H,SO,-NaCI-H,O溶(rong)液的(de)(de)復合(he)酸堿洗(xi)工藝。

4.6 切(qie)削加(jia)工與磨削性能

無特(te)殊(shu)要求。