Microstructure evolution and deformation features of single crystal nickel-based superalloy containing 4.2%Re during creep
一种含4.2%Re单晶镍基合金在蠕变期间的组织演化与变形特征
查看参考文献16篇
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文摘
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By means of microstructure observation and measurement of creep properties,the high temperature creep behaviors of a single crystal nickel-based superalloy containing Re were investigated.Results show that the single crystal nickel-based superalloy containing 4.2%Re possesses a better creep resistance at high temperature.After being crept up to fracture,the various morphologies are displayed in the different areas of the sample,and theγ′phase is transformed into the rafted structure along the direction vertical to the applied stress axis in the regions far from the fracture.But the coarsening and twisting extents of the raftedγ′phase increase in the regions near the fracture,which is attributed to the occurrence of the larger plastic deformation.In the later stage of creep,the deformation mechanism of the alloy is that the dislocations with[011]and[011]trace features shear into the raftedγ′phase.The main/secondary slipping dislocations are alternately activated to twist the raftedγ′phase up to the occurrence of creep fracture,which is thought to be the fracture mechanism of the alloy during creep. |
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其他语种文摘
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通过组织形貌观察及蠕变曲线测定,研究了一种含Re镍基单晶合金的高温蠕变行为。结果表明:含4.2%Re单晶合金在1 060-1 100℃温度区间具有较好的承温能力,但表现出较强的施加应力敏感性。经高温蠕变断裂后,在试样不同区域γ′相具有不同的组织形貌,在远离断口区域γ′相形成的筏状组织与施加应力轴方向垂直,而在近断口区域,筏状γ′相的粗化及扭曲程度的增大为该区域发生较大塑性变形所致。在蠕变后期,合金的变形机制是迹线方向为[011]和[011]的滑移位错切入筏状γ′相,主、次滑移系交替开动,使筏状γ′相发生扭折形成不规则的扭曲形态,直至发生断裂是合金的蠕变断裂机制。 |
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来源
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Transactions of Nonferrous Metals Society of China
,2011,21(7):1532-1537 【核心库】
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DOI
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10.1016/s1003-6326(11)60892-3
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关键词
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single crystal nickel-based superalloy
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Re
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creep
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microstructure evolution
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deformation mechanism
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地址
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School of Materials Science and Engineering,Shenyang University of Technology, Shenyang, 110870
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1003-6326 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:4256406
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参考文献 共
16
共1页
|
|
1.
MACKAY R A. Influence of molybdenum on the creep properties of nickle-base superalloy single crystals.
Metall Trans A,1990,21:381-387
|
CSCD被引
17
次
|
|
|
|
|
2.
CHEN Rong-zhang. Reviewand prospect on developments of cast superalloys.
Journal of Aeronautical Material,2000,20(1):55-61
|
CSCD被引
1
次
|
|
|
|
|
3.
YEH A C. Effects of Ru and Re additions on high temperature flow stresses of nickel-base single crystal supcralloys.
Scripta Material,2005,52:519-526
|
CSCD被引
30
次
|
|
|
|
|
4.
LUO Yu-shi. Role of Re in stress rupture for single crystal superalloys.
The 11th Annual Meeting of China Superalloy Collection,2007:482-485
|
CSCD被引
1
次
|
|
|
|
|
5.
WANG Wen-zhen. Role of Re and Co on microstructures andγ′ coarsening in single crystal superalloys.
Mater Sci Eng A,2008,479(2):148-158
|
CSCD被引
22
次
|
|
|
|
|
6.
YU X H. Design of quaternary Ir-Nb-Ni-Al refractory superalloys.
Metall Trans,2000(31):173-181
|
CSCD被引
2
次
|
|
|
|
|
7.
TIAN Su-gui. Precipitation behavior of TCP phase and its influence on stress rupture property of single crystal nickel-based superalloys.
The Chinese Journal of Nonferrous Metals(in Chinese),2010,20(11):2154-2161
|
CSCD被引
2
次
|
|
|
|
|
8.
RAE C M F. The precipitation of topologically close-packed phases in rhenium-containing superalloys.
Acta Mater,2001,49(19):4113-4125
|
CSCD被引
81
次
|
|
|
|
|
9.
TIAN Su-gui. Influence of TCP phase and its morphology on creep properties of single crystal nickel-based superalloys.
Mater Sci Eng A,2010,527:5444-5451
|
CSCD被引
22
次
|
|
|
|
|
10.
YU Jin-jiang. Effect of Re on deformation and slip systems of a Ni base single-crystal superalloy.
Mater Sci Eng,A,2007,458:39-43
|
CSCD被引
6
次
|
|
|
|
|
11.
SHUI Li. Creep characteristics of a Ni base single crystal superalloy along[001]direction.
Journal of University of Science and Technology Beijing,2010,32(11):1459-1463
|
CSCD被引
1
次
|
|
|
|
|
12.
TIAN Su-gui. Formation and role of dislocation networks for a single crystal nickel-base superalloy during high temperature creep.
Chinese Journal of Materials Research,1999,13(6):632-636
|
CSCD被引
1
次
|
|
|
|
|
13.
YANG De-zhuang.
Dislocation and strengthening mechanism of metal(in Chinese),1990
|
CSCD被引
1
次
|
|
|
|
|
14.
MUKHERJEE A K. Experimental correlation for high-temperature creep.
Trans ASM,1969,62:155-166
|
CSCD被引
13
次
|
|
|
|
|
15.
YIN Jiu-ren. On the climb-controlled creep cavity nucleated time of alloy in high temperature.
Natural Science Journal of Xiangtan University(in Chinese),2000,22(4):35-38
|
CSCD被引
1
次
|
|
|
|
|
16.
ZHANG Ping. Condensation-diffusion of vacancy condensation zone at high temperature.
Acta Mechanica Solida Sinica,1997,18(3):195-203
|
CSCD被引
1
次
|
|
|
|
|
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