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The role of Kirkendall porosity in determining beta -> delta transformation types in Nb-Ti-Al alloys
Shi, ZW; Wei, H; Zhang, HY; Jin, T; Sun, XF; Zheng, Q; Zheng, Q (reprint author), Chinese Acad Sci, Superalloys Div, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2016-11-01
发表期刊INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
ISSN0263-4368
卷号60页码:108-112
摘要The formation of Kirkendall porosity and its role in determining beta -> delta transformation types in Nb-Ti-Al alloys has been reported. The Kirkendall porosity appears in Nb-Ti-Al alloys due to the discrepancy in diffusion rates of Nb, Ti and Al atoms. It is proposed that Kirkendall porosity can serve as a criterion in judging the types of beta -> delta phase transformations: The appearance of Kirkendall porosity indicates the long-range diffusional transformation and excludes the massive transformation. Moreover, the criterion is also applicable in some other alloy systems in judging the phase transformation types. Besides, Kirkendall porosity in Nb-Ti-Al alloys with different hot pressing durations exhibits different dimensions. (C) 2016 Elsevier Ltd. All rights reserved.
部门归属[shi, zhiwu ; wei, hua ; zhang, hongyu ; jin, tao ; sun, xiaofeng ; zheng, qi] chinese acad sci, superalloys div, inst met res, 72 wenhua rd, shenyang 110016, peoples r china ; [shi, zhiwu] avic commercial aircraft engine co ltd, shanghai 200241, peoples r china ; [wei, hua] nanjing tech univ, coll mat sci & engn, nanjing 211800, jiangsu, peoples r china
关键词Nb-ti-al Alloy Phase Transformation Diffusion Microstructure Kirkendall Porosity
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者MSBRDP of China [2010CB631206]; National Natural Science Foundation of China [51371173]
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/321006/76226
专题中国科学院金属研究所
通讯作者Zheng, Q (reprint author), Chinese Acad Sci, Superalloys Div, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Shi, ZW,Wei, H,Zhang, HY,et al. The role of Kirkendall porosity in determining beta -> delta transformation types in Nb-Ti-Al alloys[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,2016,60:108-112.
APA Shi, ZW.,Wei, H.,Zhang, HY.,Jin, T.,Sun, XF.,...&Zheng, Q .(2016).The role of Kirkendall porosity in determining beta -> delta transformation types in Nb-Ti-Al alloys.INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,60,108-112.
MLA Shi, ZW,et al."The role of Kirkendall porosity in determining beta -> delta transformation types in Nb-Ti-Al alloys".INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS 60(2016):108-112.
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