当前位置: X-MOL 学术J. Alloys Compd. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Investigation of NiAl intermetallic compound as bond coat for thermal barrier coatings on Mg alloy
Journal of Alloys and Compounds ( IF 6.2 ) Pub Date : 2017-12-01 , DOI: 10.1016/j.jallcom.2017.09.190
Xizhi Fan , Ling Zhu , Wenzhi Huang

Abstract Bond coats play a significant role in manipulating the stability of 8YSZ thermal barrier coatings (TBCs) deposited on Mg alloy. In this study, the metal of Ni-Al mixture was sprayed as bond coat via reaction plasma spraying (RPS). Besides, Intermetallic compound NiAl was prepared by self-propagating high-temperature synthesis (SHS). The pure intermetallic compound NiAl was sprayed as bond coat via atmospheric plasma spraying (APS). The microstructure, composition, bond stability and corrosion resistance of the produced bond coats were investigated to find the optimal bond coat for the TBCs on Mg alloy. Results indicate that the bond coats composed of NiAl show excellent bond stability. High toughness of the RPS Ni-Al bond coat results in high tensile bond strength. The APS NiAl bond coat leads to outstanding thermal shock resistance mainly attributing to its moderate thermal expansion match, good mechanical properties and excellent corrosion resistance.

中文翻译:

NiAl金属间化合物作为镁合金热障涂层结合层的研究

摘要 结合涂层在控制镁合金上沉积的 8YSZ 热障涂层 (TBC) 的稳定性方面起着重要作用。在这项研究中,Ni-Al 混合物的金属通过反应等离子喷涂 (RPS) 作为结合涂层进行喷涂。此外,通过自蔓延高温合成(SHS)制备了金属间化合物NiAl。通过大气等离子喷涂(APS)喷涂纯金属间化合物NiAl作为粘合涂层。研究了所生产的粘合涂层的微观结构、成分、粘合稳定性和耐腐蚀性,以找到用于镁合金上 TBC 的最佳粘合涂层。结果表明,由 NiAl 组成的粘合涂层显示出优异的粘合稳定性。RPS Ni-Al 粘合涂层的高韧性导致高拉伸粘合强度。
更新日期:2017-12-01
down
wechat
bug