Measurements of gamma/gamma ' Lattice Misfit and gamma ' Volume Fraction for a Ru-containing Nickel-based Single Crystal Superalloy

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	Measurements of gamma/gamma ' Lattice Misfit and gamma ' Volume Fraction for a Ru-containing Nickel-based Single Crystal Superalloy
	X. P. Tan; J. L. Liu; X. P. Song; T. Jin; X. F. Sun; Z. Q. Hu
	2011
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	27 期号:10 页码:899-905
摘要	A conventional X-ray diffractometer has been used to determine the gamma/gamma' lattice misfit and gamma' volume fraction for a Ru-containing nickel-based single crystal superalloy at room temperature. The rocking curve was used to characterize the distribution of subgrains. The diffraction peaks obtained by omega-2 theta scan were used to determine the gamma/gamma' lattice misfit and gamma' volume fraction. A three peaks fitting model was proposed. The peak fitting results are in good agreement with the model. The X-ray diffraction results indicate that the nickel-based single crystal superalloy was not a perfect monocrystalline material, which is comprised of many subgrains; and each subgrain also consists of large numbers of mosaic structures. In addition, two anomalous reflection phenomena were found during the experiment and discussed with respect to their occurrence and impact on the measurement. The experimental results show that the gamma/gamma' lattice misfit and gamma' volume fraction will be various at the different regions of its dendritic microstructure. The average gamma/gamma' lattice misfit and gamma' volume fraction of the experimental alloy are approximately -0.2% and 70%, respectively. Furthermore, the gamma' volume fraction calculated by atom microprobe (AP) data is also basically consistent with the experimental results.
部门归属	[tan, x. p.; liu, j. l.; jin, t.; sun, x. f.; hu, z. q.] chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china. [song, x. p.] chinese acad sci, inst met res, anal & testing div, shenyang 110016, peoples r china.;jin, t (reprint author), chinese acad sci, inst met res, superalloy div, shenyang 110016, peoples r china;tjin@imr.ac.cn
关键词	Nickel-based Superalloy Microstructure X-ray Diffraction Lattice Misfit Gamma' Volume Fraction X-ray Temperature-dependence Internal-stress Mismatch Creep Deformation Morphology Rhenium Am1
URL	查看原文
WOS记录号	WOS:000296946500006
引用统计	被引频次：37[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30696
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. P. Tan,J. L. Liu,X. P. Song,et al. Measurements of gamma/gamma ' Lattice Misfit and gamma ' Volume Fraction for a Ru-containing Nickel-based Single Crystal Superalloy[J]. Journal of Materials Science & Technology,2011,27(10):899-905.
APA	X. P. Tan,J. L. Liu,X. P. Song,T. Jin,X. F. Sun,&Z. Q. Hu.(2011).Measurements of gamma/gamma ' Lattice Misfit and gamma ' Volume Fraction for a Ru-containing Nickel-based Single Crystal Superalloy.Journal of Materials Science & Technology,27(10),899-905.
MLA	X. P. Tan,et al."Measurements of gamma/gamma ' Lattice Misfit and gamma ' Volume Fraction for a Ru-containing Nickel-based Single Crystal Superalloy".Journal of Materials Science & Technology 27.10(2011):899-905.