不同环境气氛中NiAl-2.5Ta-7.5Cr-1B-5Co-2.5Re合金的摩擦磨损特性
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摘要
本工作研究了空气、真空以及氮气环境中NiAl-2. 5Ta-7. 5Cr-1B-5Co-2. 5Re合金的磨损特性。采用XRD、SEM、EDS分析了合金的相组成与磨损机制。结果表明:真空与氮气中,合金磨损表面没有形成氮化物以及化学吸附层,合金与对磨件直接接触磨损;空气的氧化作用导致部分合金磨损表面生成了氧化膜,产生一定程度的氧化磨损。不同环境气氛中,合金的磨损率主要受控于磨损表面接触状态和磨损机制;当载荷为3～5 N时,磨损表面呈弹性接触状态,磨损率主要受控于粘着磨损机制;当载荷为10～20 N时磨损表面呈塑性接触状态,磨损率主要受控于磨粒磨损机制。真空与氮气中,合金的摩擦系数主要受控于摩擦力的剪切作用;空气中,磨损表面的氧化膜对摩擦系数产生重要影响。
The wear characteristics of NiA l-2. 5 Ta-7. 5 Cr-1 B-5 Co-2. 5 Re alloy in different ambient atmospheres were studied. The phase composition and wear mechanism of the alloy were analyzed by XRD,SEM and EDS. The results showed that the wear surface of the alloy does not form nitride and its chemical adsorption layer in the vacuum and nitrogen,the alloy is in direct against Si3 N4,The oxidation of the air causes the surface of the alloy with oxide film. In different ambient atmosphere,the wear rate of the alloy are mainly controlled by the contact state and wear mechanism,the friction surface is in elastic contact state at 3 ～ 5 N,and the wear rate is mainly influenced by the adhesive wear mechanism. 10 ～ 20 N,the friction surface is in plastic contact state,and its wear rates are mainly controlled by the abrasive wear. In the vacuum and nitrogen,the friction coefficients are mainly controlled by the shear force of the friction. In the air environment,the oxide film on the wear surface have a great influence on friction coefficients.
The wear characteristics of NiA l-2. 5 Ta-7. 5 Cr-1 B-5 Co-2. 5 Re alloy in different ambient atmospheres were studied. The phase composition and wear mechanism of the alloy were analyzed by XRD,SEM and EDS. The results showed that the wear surface of the alloy does not form nitride and its chemical adsorption layer in the vacuum and nitrogen,the alloy is in direct against Si3 N4,The oxidation of the air causes the surface of the alloy with oxide film. In different ambient atmosphere,the wear rate of the alloy are mainly controlled by the contact state and wear mechanism,the friction surface is in elastic contact state at 3 ～ 5 N,and the wear rate is mainly influenced by the adhesive wear mechanism. 10 ～ 20 N,the friction surface is in plastic contact state,and its wear rates are mainly controlled by the abrasive wear. In the vacuum and nitrogen,the friction coefficients are mainly controlled by the shear force of the friction. In the air environment,the oxide film on the wear surface have a great influence on friction coefficients.
引文
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4 Guo J T. Ordered Intermetallic Compound Ni Al Alloy,Science Press,China,2003(in Chinese).郭建亭.有序金属间化合物镍铝合金,科学出版社,2003.
5 Guo J T. Superalloy Materials Science(Volume 1),Science Press,China,2010(in Chinese).郭建亭.高温合金材料学(上册),科学出版社,2010.
6 Noebe R D,Bowman R R,Nathal M V. Metallurgical Reviews,1993,38(4),193.
7 Miracle D B. Acta Metallurgica Et Materialia,1993,41(3),649.
8 Mishra S C,Satapathy A,Chaithany A M,et al. Journal of Reinforced Plastics&Composites,2009,28(23),2931.
9 Wang Z S,Guo J T,Zhou L Z,et al. Chinese Journal of Material Research,2009,23(3),225(in Chinese).王振生,郭建亭,周兰章,等.材料研究学报,2009,23(3),225.
10 Palm M,Preuhs J,Sauthoff G. Journal of Materials Processing Technology,2003,136(1-3),105.
11 Wang Z S,Zhang M E,Yang S S,et al. Rare Metal Materials and Engineering,2015,44(8),1909(in Chinese).王振生,张孟恩,杨双双,等.稀有金属材料与工程,2015,44(8),1909.
12 Katsubiro N,Shingo S,Taku K,et al. Powder Metall,1993,40(1),49.
13 Senda T,Yamamoto Y,Ochi Y. Journal of the Ceramic Society of Japan,2010,101(1172),461.
14 Wang Z S,Zhang M E,Yang S S,et al. Acta Metallurgica Sinica,2013,49 (11),1325(in Chinese).王振生,张孟恩,杨双双,等.金属学报,2013,49(11),1325.
15 Li S Z,Jiang X X. Material Science Progress,1990,4(1),1(in Chinese).李诗卓,姜晓霞.材料科学进展,1990,4(1),1.
16 Jiang X X,Li S Z,Peteson M B,et al. Materials Science Progress,1989,3 (6),487(in Chinese).姜晓霞,李诗卓,Peteson M B,等.材料科学进展,1989,3(6),487.
17 Yang S L,Chen Y,Xue X H,et al. Shanghai Metals,2005,45(27),45(in Chinese).杨尚磊,陈艳,薛小怀,等.上海金属,2005,45(27),45.
18 Bowden F P,Tabor D. The Friction and Lubrication of Solids. China Machine Press,China,1982.
19 Wen S Z,Huang P. Tribology Principles(3rd Edition),Tsinghua University Press,China,2008(in Chinese).温诗涛,黄平.摩擦学原理(第3版),清华大学出版社,2008.
20 Wang G M,Zhang Y Z,Du S M,et al. Tribology,2007,27(4),346(in Chinese).王观民,张永振,杜三明,等.摩擦学学报,2007,27(4),346.
21 Duan H T,Du S M,Zhang Y Z. Tribology,2007,32(11),28(in Chinese).段海涛,杜三明,张永振.摩擦学学报,2007,32(11),28.