Ta对镍基单晶合金铸态组织和偏析的影响
Effect of Ta on As-cast Microstructure and Segregation of Ni-base Single Crystal Superalloy
查看参考文献15篇
|
文摘
|
利用螺旋选晶法制备了不同Ta含量的镍基单晶合金,研究了Ta对镍基单晶合金铸态组织和偏析的影响。结果表明:镍基单晶铸态组织主要由枝晶组成,枝晶间的γ’较大,枝晶干的γ’较小;Ta对枝晶有较大影响,随着Ta含量的提高,枝晶间距减小,并且逐渐出现三次枝晶臂;Ta提高了Mo的偏析系数,促进了Mo在枝晶间的偏析;Ta改变了γ’的形貌,Ta含量较低时,γ’为圆形,Ta含量提高时,γ’向方形转变,同时合金的错配度增大。 |
|
其他语种文摘
|
The Ni-base superalloys with different Ta contents were prepared by using screw selecting crystal method,its as-cast microstructure and elements segregation of the alloys were investigated.The results show that the as-casting microstructure consists of dendrites,the γ′ in inter-dendrite is larger and that in dendrite is smaller.The dendrite distance is effected by Ta content,with the increase of Ta,the dendrite distance decreases,Mo segregation in inter-dendrite zone and the segregation coefficient increases.The morphology and size of γ′ phase is effected by the addition of Ta,with the increase of Ta content,the γ′ changes from ellipse to squareness,in the meantime the mismatch degree of the alloy increases. |
|
来源
|
热加工工艺
,2011,40(21):29-32 【核心库】
|
|
关键词
|
镍基单晶合金
;
枝晶
;
偏析
;
错配度
|
|
地址
|
1.
辽宁工程技术大学材料科学与工程学院, 辽宁, 阜新, 123000
2.
中平能化集团天工机械制造有限公司, 河南, 平顶山, 467000
3.
中国科学院力学研究所, 北京, 100190
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1001-3814 |
|
学科
|
金属学与金属工艺 |
|
文献收藏号
|
CSCD:4425966
|
参考文献 共
15
共1页
|
|
1.
Ford D A. Development of single crystal alloys for specific engine application.
Superalloys 1984,1984:115-124
|
CSCD被引
8
次
|
|
|
|
|
2.
Caron P. Evolution of Ni-based superalloys for single crystal gas turbine blade applications.
Aerosp. Sci. Technol.,1999(3):513-523
|
CSCD被引
102
次
|
|
|
|
|
3.
Konter M. Materials and manufacturing of advanced industrial gas turbine components.
Journal of Materials Processing Technology,2001,117:386-390
|
CSCD被引
22
次
|
|
|
|
|
4.
胡壮麒. 镍基单晶高温合金的发展.
航空发动机,2005,31(3):1-7
|
CSCD被引
138
次
|
|
|
|
|
5.
Race C F. Topologically close packed phases in an experimental rhenium-containing single crystal superalloy.
Pollock T M.Superalloys 2000,2000:767-776
|
CSCD被引
1
次
|
|
|
|
|
6.
Cardonne S M. Tantalum and its Alloys.
Journal of Refractory Metals & Hard Materials,1995,13:187-194
|
CSCD被引
27
次
|
|
|
|
|
7.
郑亮. Ta对低Cr高W铸造镍基高温合金显微组织的影响.
稀有金属材料与工程,2005,34(2):194-198
|
CSCD被引
15
次
|
|
|
|
|
8.
孟昭钰. Ta对K9铸造高温合金组织性能的影响.
钢铁,1981,16(8):57-61
|
CSCD被引
4
次
|
|
|
|
|
9.
Erickson G L.
Single crystal nickel-based superalloy. USP: 5366695,1994
|
CSCD被引
1
次
|
|
|
|
|
10.
崔忠圻.
金属学与热处理,1988:84-85
|
CSCD被引
2
次
|
|
|
|
|
11.
Tien J K. The suppression of dendrite growth in nickel-base superalloys during unidirectional solidification.
Materials Science and Engineering,1971(3):152-160
|
CSCD被引
4
次
|
|
|
|
|
12.
Volek A. Partitioning of Re between γ and γ' phase in nickel-base superalloys.
Scripta Materialia,2005(52):141-145
|
CSCD被引
1
次
|
|
|
|
|
13.
Jackson J J. The effect of volume% of fine γ' on creep in DSMAR-M200Hf.
Metallurgical transactions A. A,1977,8(10):1615
|
CSCD被引
18
次
|
|
|
|
|
14.
Qiu Y Y. The effect of the lattice strains on the directional coarsening of γ' precipitates in Ni-base alloys.
Journal of Alloys and Compounds,1996,232:254-263
|
CSCD被引
13
次
|
|
|
|
|
15.
Caron P. High γ' Solvus New Generation Nickel-based superalloys for Single Crystal Turbine Blade Applications.
Pollock T M. Superalloys 2000,2000:737-746
|
CSCD被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问