Please wait a minute...
金属学报  2008, Vol. 44 Issue (7): 791-798     
  论文 本期目录 | 过刊浏览 |
Al含量对GH4169镍基合金组织及其稳定性的影响
刘芳;孙文儒;杨树林;李战;郭守仁;杨洪才;胡壮麒
金属研究所
EFFECTS OF AL ON MICROSTRUCTURE AND STABILITY OF GH4169 ALLOY
金属研究所
引用本文:

刘芳; 孙文儒; 杨树林; 李战; 郭守仁; 杨洪才; 胡壮麒 . Al含量对GH4169镍基合金组织及其稳定性的影响[J]. 金属学报, 2008, 44(7): 791-798 .

全文: PDF(5960 KB)  
摘要: GH4169合金中当Al含量处于合金标准范围内(0.45%)时, 其晶内强化相γ''和γ'分开析出, 晶界主要 析出相为β相; 当Al含量为1.24%以上时, 合金晶内析出γ''/γ'“包覆组织”, 晶界β相显著减少, 而析出了大量 的Laves相和少量的M7C3相及σ相. 680 ℃, 1000 h 长期时效后, 高Al合金中 “包覆组织”长大缓慢, 但晶界 相数量显著增加, 尺寸明显长大, 而且析出了α-Cr相. 随Al含量增加, 这种趋势更加明显. Al含量增加显著地 降低合金的室温冲击韧性, 680 ℃长期时效后, 冲击值更低.
关键词 GH4169镍基合金Al“包覆组织”    
Abstract:ABSTRACT The effects of Al on the microstructure and stability of GH4169 alloy were studied in this article. When the Al contents were in the standard range required by GH4169 alloy, γ″ and γ′ phase were precipitated separately in the grain, and δ phase was precipitated as the principle precipitate in the grain boundaries. γ″/γ′ “compact morphology” was formed in the grain, δ phase was decreased greatly in the grain boundaries accompanying with a large amount of Laves phase, a small amount of M7C3 carbide and σ phase precipitating there with the increment of Al content, specially above 1.24% (mass.). After long- term aging at 680℃ up to 1000h, γ″/γ′ “compact morphology” grew slowly in the alloys with high Al contents, whereas the amount of the phases precipitating in the grain boundaries was increased, whose sizes were coarsened, and α-Cr phase was formed in this condition. This trend was more obvious with increasing Al contents.
Key words
收稿日期: 2007-12-06     
ZTFLH:  TF777.1  
[1]Xie X S,Dong J X.In:Shi Changxu,ed.,Proc Ist Pa- cific Rim Int Confon Advanced Materials and Processing, Warrendale,PA:TMS,1992:857
[2]Xie X S,Dong J X,Wang G L,You W.In:Loria E A, ed.,Superalloys 718,625,706 and Various Derivatives, Warrendale,PA:TMS,2005:287
[3]Cao W D,Kennedy R L.In:Loria E A,ed.,Superalloys 718,625,706 and Various Derivatives,Warrendale,PA: TMS,2001:477
[4]Guo E C,Xu F Q.In:Loria E A,ed.,Superalloys 718, 625,706 and Various Derivative,Warrendale,PA:TMS, 1994:721
[5]Andrieu E,Wang N,Molins R,Pineau A.In:Loria E A, ed.,Superalloys 718,625,706 and Various Derivatives, Warrendale,PA:TMS,1994:695
[6]Sun W R,Guo S R,Lu D Z,Hu Z.Metall Mater Trans, 1997;28A:649
[7]Cao W D,Kennedy R L.In:Loria E A,ed.,Super Alloys 718,625,706 and Various Derivatives,Warrendale,PA: TMS,2001:455
[8]Basile A O,Radavich J F.In:Loria E A,ed.,SuperAlloys 718,625,706 and Various Derivatives,Warrendale,PA: TMS,1991:325
[1] 丁桦, 张宇, 蔡明晖, 唐正友. 奥氏体基Fe-Mn-Al-C轻质钢的研究进展[J]. 金属学报, 2023, 59(8): 1027-1041.
[2] 孙蓉蓉, 姚美意, 王皓瑜, 张文怀, 胡丽娟, 仇云龙, 林晓冬, 谢耀平, 杨健, 董建新, 成国光. Fe22Cr5Al3Mo-xY合金在模拟LOCA下的高温蒸汽氧化行为[J]. 金属学报, 2023, 59(7): 915-925.
[3] 袁江淮, 王振玉, 马冠水, 周广学, 程晓英, 汪爱英. Cr2AlC涂层相结构演变对力学性能的影响[J]. 金属学报, 2023, 59(7): 961-968.
[4] 王宗谱, 王卫国, Rohrer Gregory S, 陈松, 洪丽华, 林燕, 冯小铮, 任帅, 周邦新. 不同温度轧制Al-Zn-Mg-Cu合金再结晶后的{111}/{111}近奇异晶界[J]. 金属学报, 2023, 59(7): 947-960.
[5] 吴东江, 刘德华, 张子傲, 张逸伦, 牛方勇, 马广义. 电弧增材制造2024铝合金的微观组织与力学性能[J]. 金属学报, 2023, 59(6): 767-776.
[6] 冯艾寒, 陈强, 王剑, 王皞, 曲寿江, 陈道伦. 低密度Ti2AlNb基合金热轧板微观组织的热稳定性[J]. 金属学报, 2023, 59(6): 777-786.
[7] 王福容, 张永梅, 柏国宁, 郭庆伟, 赵宇宏. Al掺杂Mg/Mg2Sn合金界面的第一性原理计算[J]. 金属学报, 2023, 59(6): 812-820.
[8] 刘满平, 薛周磊, 彭振, 陈昱林, 丁立鹏, 贾志宏. 后时效对超细晶6061铝合金微观结构与力学性能的影响[J]. 金属学报, 2023, 59(5): 657-667.
[9] 王迪, 贺莉丽, 王栋, 王莉, 张思倩, 董加胜, 陈立佳, 张健. Pt-Al涂层对DD413合金高温拉伸性能的影响[J]. 金属学报, 2023, 59(3): 424-434.
[10] 王虎, 赵琳, 彭云, 蔡啸涛, 田志凌. 激光熔化沉积TiB2 增强TiAl基合金涂层的组织及力学性能[J]. 金属学报, 2023, 59(2): 226-236.
[11] 李斗, 徐长江, 李旭光, 李双明, 钟宏. La掺杂PCeyFe3CoSb12 热电材料及涂层的热电性能[J]. 金属学报, 2023, 59(2): 237-247.
[12] 朱智浩, 陈志鹏, 刘田雨, 张爽, 董闯, 王清. 基于不同 α / β 团簇式比例的Ti-Al-V合金的铸态组织和力学性能[J]. 金属学报, 2023, 59(12): 1581-1589.
[13] 巩向鹏, 伍翠兰, 罗世芳, 沈若涵, 鄢俊. 自然时效对Al-2.95Cu-1.55Li-0.57Mg-0.18Zr合金160℃人工时效的影响[J]. 金属学报, 2023, 59(11): 1428-1438.
[14] 张丽丽, 吉宗威, 赵九洲, 何杰, 江鸿翔. 亚共晶Al-Si合金中微量元素La变质共晶Si的关键影响因素[J]. 金属学报, 2023, 59(11): 1541-1546.
[15] 李小兵, 潜坤, 舒磊, 张孟殊, 张金虎, 陈波, 刘奎. W含量对Ti-42Al-5Mn-xW合金相转变行为的影响[J]. 金属学报, 2023, 59(10): 1401-1410.