Preparation of TiC/Ni Functionally Gradient Coating on Die Casting Die by SHS/PHIP

Pan Chenggang; Zhao Chuanxiang; Liu Dudu; Chang Qingming; Wu Qiong

doi:10.15980/j.tzzz.2017.07.014

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Preparation of TiC/Ni Functionally Gradient Coating on Die Casting Die by SHS/PHIP
Vol. 37, Issue 7, Pages: 743-746(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.07.014

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[1]潘成刚,赵川翔,刘笃笃,常庆明,吴琼.SHS/PHIP法压铸模表面制备TiC/Ni功能梯度涂层研究[J].特种铸造及有色合金,2017,37(07):743-746.

Pan Chenggang, Zhao Chuanxiang, Liu Dudu, et al. Preparation of TiC/Ni Functionally Gradient Coating on Die Casting Die by SHS/PHIP. [J]. Special Casting & Nonferrous Alloys 37(7):743-746(2017)
[1]潘成刚,赵川翔,刘笃笃,常庆明,吴琼.SHS/PHIP法压铸模表面制备TiC/Ni功能梯度涂层研究[J].特种铸造及有色合金,2017,37(07):743-746. DOI： 10.15980/j.tzzz.2017.07.014.

Pan Chenggang, Zhao Chuanxiang, Liu Dudu, et al. Preparation of TiC/Ni Functionally Gradient Coating on Die Casting Die by SHS/PHIP. [J]. Special Casting & Nonferrous Alloys 37(7):743-746(2017) DOI： 10.15980/j.tzzz.2017.07.014.

摘要

利用自蔓延高温合成结合准热等静压技术（SHS/PHIP）

在H13钢表面成功制备了TiC/Ni梯度功能涂层

采用XRD和SEM-EDS对涂层进行物相分析和微观组织观察

采用显微硬度测定和冲击试验对涂层性能进行检测。结果表明

涂层的主要物相为TiC和Ni基固溶体

原位生成的TiC颗粒细小且分布均匀

与Ni结合成紧密的TiC/Ni金属陶瓷结构。表面涂层显微硬度(HV

0.05

)为857.94

涂层与基体结合良好。

Abstract

The TiC/Ni cermet functionally gradient coating on H13 steel surface was prepared by selfpropagating high temperature synthesis and pseudo hot isostatic pressing（SHS/PHIP）.The coating phases and microstructure were identified and observed by XRD and SEM-EDS

respectively.Microhardness and bonding strength of the compound coatings were tested by microhardness tester and impact test method

respectively.The results show that the coating mainly consists of small and uniform distribution in situ TiCpand Ni-based solid solution which closely combined with TiC particles.The average microhardness of surface reaches 857.94 HV

0.05

.The impact test reveals the better bonding strength between H13 substrate and coating.