铁-镍-钴-基3种高温合金的恒温氧化行为  

Oxidation Behavior of Ferrous- Nickel- and Cobalt-Base 3 Kinds of Superalloys at Constant Temperature

作　　者：喻育红 孙魁平[2] 邓秀琴 王志刚[2] 

机构地区：[1]抚顺抚特钢材销售有限公司,抚顺113001 [2]东北特殊钢集团有限责任公司,大连116031

出　　处：《特殊钢》2008年第5期35-37,共3页Special Steel

摘　　要：研究了铁基合金GH1140(%:0.08C、21.60Cr、37.42Ni、2.31 Mo、1.63W、0.44Al、0.91Ti)、镍基合金GH4098(%:0.02C、18.52Cr、5.92Co、5.81W、3.96Mo、2.74Al、1.19Ti、0.10Fe)和钴基合金GH5605(%:0.10C、19.92Cr、10.55Ni、15.16W、1.77Mn、0.52Fe)在750～950℃100h的静态氧化行为。结果表明,在750～900℃,3种合金中GH4098抗氧化性最佳,GH1140最弱;950℃,GH5605抗氧化性最佳,GH1140最弱。GH1140的氧化膜组成主要为Cr_2O_3+少量(Fe+2Cr_2O_4),GH4098为(Cr_2O_3+NiCr_2O_4)+少量NiO,GH5605为Cr_2O_3+Co_3W+ CrMn_2O_4。Statical oxidation behavior of ferrous-base alloy GH1140 （0. 08C, 21.60Cr, 37.42Ni, 2.31Mo, 1.63W, 0. 44A1, 0. 91Ti）, nlckel-base alloy GH4098 （0. 02C, 18.52Cr, 5.92Co, 5.81W, 3.96Mo, 2. 74Al, 1.19Ti, 0. 10Fe） and cobalt- base alloy GH5605 （0. 10C, 19： 92Cr, 10. 55Ni, 15.16W, 1.77Mn, 0. 52Fe） at 750 -950 ℃ for 100 h has been studied. Results showed that at 750 - 900 ℃, the oxidation-resisting quality of GH4098 was optimum and that of GH1140 was lowest in the 3 kinds of superaltoys at 950 ℃, the oxidation-resistant quality of GH5605 was optimum and that of GH1140 was lowest likewise. The main ingredient of oxidation film for GH1140 was Cr2O3 ＋ a little （Fe ＋ 2Cr2O4 ） , that for GH4098 was （Cr2O3 ＋ NiCr2O4） ＋ a little NiO, and that for GH5605 was Cr2O3 ＋ Co3W ＋ CrMn2O4.

关 键 词：高温合金 铁基 镍基 钴基 抗氧化性 

分 类 号：TG132.32[一般工业技术—材料科学与工程] TB332[金属学及工艺—合金]