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Transient Liquid Phase Bonding Single-Crystal Superalloys with Orientation Deviations: Creep Properties
Sheng, Naicheng; Liu, Jide; Jin, Tao; Sun, Xiaofeng; Hu, Zhuangqi; naicheng.sheng@fau.de
2015
发表期刊METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN1073-5623
卷号46A期号:12页码:5772-5781
摘要Superalloys single crystals with various orientation deviations were bonded using transient liquid phase bonding method, then the creep properties of the bonded specimens were tested at 1033 K (760 degrees C)/780 MPa. It is found that the creep life of the bonded specimens decreases with the increase of the relative orientation deviations. Despite the fracture of the specimens appears on the bonding region, the deformation mechanism changes from specimens with low angle boundary to high angle boundary. In low angle boundary specimens, cleavage originated from the defects grows perpendicularly to the tensile stress and connects through the different slip planes around the cleavage planes. In this case, the deformation proceeds by the dislocations and stacking faults on multi- planes. With increasing orientation deviation, dislocation and stacking faults moved on single plane. As a result, the dislocations interact with the grain boundary and lead to fracture. Based on the present investigation, the orientation of the bonded superalloys single crystal should be controlled so that the introduced grain boundaries are relatively small and exhibit higher creep strength. (C) The Minerals, Metals & Materials Society and ASM International 2015
部门归属[sheng, naicheng] chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china ; [liu, jide ; jin, tao ; sun, xiaofeng ; hu, zhuangqi] chinese acad sci, superalloys div, inst met res, beijing 100864, peoples r china
资助者National Basic Research Program (973 Program) of China [2010CB631200 (2010CB631206)]; National High Technology Research and Development Program (863 Program) of China [2014AA041701]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75221
专题中国科学院金属研究所
通讯作者naicheng.sheng@fau.de
推荐引用方式
GB/T 7714
Sheng, Naicheng,Liu, Jide,Jin, Tao,et al. Transient Liquid Phase Bonding Single-Crystal Superalloys with Orientation Deviations: Creep Properties[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2015,46A(12):5772-5781.
APA Sheng, Naicheng,Liu, Jide,Jin, Tao,Sun, Xiaofeng,Hu, Zhuangqi,&naicheng.sheng@fau.de.(2015).Transient Liquid Phase Bonding Single-Crystal Superalloys with Orientation Deviations: Creep Properties.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,46A(12),5772-5781.
MLA Sheng, Naicheng,et al."Transient Liquid Phase Bonding Single-Crystal Superalloys with Orientation Deviations: Creep Properties".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 46A.12(2015):5772-5781.
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