钼添加量对Ni-8Al高温合金高温抗氧化性能的影响
Effect of Molybdenum Addition Amount on High Temperature Oxidation Resistance of Ni-8Al Superalloy
摘 要
采用粉末冶金技术制备了Ni-8Al-xMo （x=0，5，10，15，质量分数/%）高温合金，在1 000℃恒温氧化100 h后，观察了氧化膜的表面和截面形貌，分析了其物相组成，研究了合金的高温抗氧化性能。结果表明：添加钼的试验合金高温抗氧化性能比未添加钼的更好；试验合金表面的氧化产物均主要为Al2O3和NiO，并有少量的NiAl2O4和NiMoO4；当钼质量分数达到10%后，试验合金表面的氧化膜出现不同程度的剥落现象；当钼质量分数为5%时，试验合金的高温抗氧化性能最好。
钼
抗氧化性能
粉末冶金
Ni-8Al superalloy
molybdenum
oxidation resistance
powder metallurgy
Abstract
Ni-8Al-xMo (x=0,5,10,15,mass fraction/%) superalloys were prepared by powder metallurgy technique, and then isothermally oxidized at 1 000℃ for 100 h. The surface and cross-section morphology of oxide films was observed and the phase composition was analyzed. The high temperature oxidation resistance of the tested alloys was studied. The results show that the high temperature oxidation resistance of the tested alloy with molybdenum addition was better than that without molybdenum addition. The oxidation products on the surface of the tested alloy were mainly Al2O3 and NiO, with a small amount of NiAl2O4 and NiMoO4. When the mass fraction of molybdenum reached 10%, the oxide film on the surface of the tested alloy showed spalling features at different degrees. When the mass fraction of molybdenum was 5%, the high temperature oxidation resistance of the tested alloy was the best.
中图分类号 TG172.82 DOI 10.11973/jxgccl201907004
所属栏目 新材料 新工艺
基金项目 广西有色金属及特色材料加工重点实验室青年基金资助项目（GXYSYF1805）
收稿日期 2018/6/13
修改稿日期 2019/6/4
网络出版日期
作者单位点击查看
备注韩义勇(1979-),男,山东青岛人,高级工程师,硕士
引用该论文: HAN Yiyong,LIU Zhibin,YAN Haiju,ZHANG Xiuhai. Effect of Molybdenum Addition Amount on High Temperature Oxidation Resistance of Ni-8Al Superalloy[J]. Materials for mechancial engineering, 2019, 43(7): 14～19
韩义勇,刘质彬,闫海居,张修海. 钼添加量对Ni-8Al高温合金高温抗氧化性能的影响[J]. 机械工程材料, 2019, 43(7): 14～19
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【2】LV X, SUN F, TONG J Y, et al. Paired dislocations and their interactions with γ' particles in polycrystalline superalloy GH4037[J]. Journal of Materials Engineering and Performance, 2015, 24(1):143-148.
【3】GEDDES B, LEON H, HUANG X. Superalloys:Alloying and Performance[M].[s.l.]:[s.n.], 2010:1-20.
【4】LEI Z, ZHANG M C, DONG J X. Hot corrosion behavior of powder metallurgy Rene95 nickel-based superalloy in molten NaCl-Na2SO4 salts[J]. Materials & Design, 2011, 32(4):1981-1989.
【5】MA Y C, ZHAO X J, GAO M, et al. High-temperature oxidation behavior of a Ni-Cr-W-Al alloy[J]. Journal of Materials Science & Technology, 2011, 27(9):841-845.
【6】卢旭东,田素贵,孙振东.一种镍基高温合金在850℃和950℃的氧化行为[J]. 腐蚀科学与防护技术, 2011, 23(4):298-302.
【7】HAN Y F, XING Z P, CHATURVEDI M C, et al. Oxidation resistance and microstructure of Ni-Cr-Al-Y-Si coating on Ni3Al based alloy[J]. Materials Science and Engineering:A, 1997, 239/240:871-876.
【8】CHEN G F, LOU H Y. Predicting the oxide formation of Ni-Cr-Al alloys with nano-sized grain[J]. Materials Letters, 2000, 45(5):286-291.
【9】孙文, 秦学智, 郭建亭, 等. (W+Mo)/Cr比对铸造镍基高温合金时效组织和持久性能的影响[J]. 金属学报, 2015, 51(1):67-76.
【10】许文勇. 喷射成形高温合金组织特性及变化规律的研究[D]. 北京:北京航空材料研究院, 2006.
【11】胡聘聘. Ru和Mo对镍基单晶高温合金组织及持久性能的影响[D]. 北京:北京科技大学, 2009.
【12】康福伟, 孙剑飞, 张国庆, 等. 喷射成形镍基高温合金热变形特性及微观组织变化[J]. 金属学报, 2007, 43(10):1053-1058.
【13】ZHANG J, LI J G, JIN T, et al. Effect of Mo concentration on creep properties of a single crystal nickel-base superalloy[J]. Materials Science and Engineering:A, 2010, 527(13/14):3051-3056.
【14】郭建亭. 高温合金材料学[M]. 北京:科学出版社, 2008:25-30.
【15】伯克斯. 金属高温氧化导论[M]. 北京:高等教育出版社, 2010:101-110.
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【21】SATO A, HARADA H, YEH A C, et al. A 5th generation SC superalloy with balanced high temperature properties and processability[C]//The Minerals, Metals & Materials Society.[S.l.]:[s.n.], 2008,1:131-138.
【22】胡锐, 高翔宇, 袁亮,等. Ni-Cr-x(x=W,Mo)基高温合金中超点阵相的相变及力学行为研究[C]//第十二届全国固态相变、凝固及应用学术会议论文集.南昌:中国金属学会材料科学分会,2016:15-18.
【23】程小伟. Inconel625合金大规格管棒材挤压过程的组织与性能演变[D]. 兰州:兰州理工大学, 2016.
【24】ROOS G D, FLUIT J M, VELTHUIZEN R P, et al. Quantitative determination of the kinetics of the reaction of NiO and Al2O3 to NiAl2O4 by rutherford backscattering[J]. Surface and Interface Analysis, 1983, 5(3):119-131.
【25】倪莉, 张军, 王博, 等. 镍基高温合金设计的研究进展[J]. 材料导报, 2014, 28(3):1-6.
【26】曲红霞. 镍基高温合金组织性能与净化工艺的研究[D]. 兰州:兰州理工大学, 2016.
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