Mechanical and microstructural characterization of W-Cu FGM fabricated by one-step sintering method through PM route

被引：8

作者：

Gupta, Rajat ^{[1
]}

Kumar, Rohit ^{[1
]}

Chaubey, A. K. ^{[1
]}

Kanpara, Shailesh ^{[2
]}

Ithinvadkar, S. S. ^{[2
]}

机构：

[1] CSIR, IMMT, Bhubaneswar 751013, Orissa, India

[2] Inst Plasma Res, Gandhinagar 382428, India

来源：

7TH NATIONAL CONFERENCE ON PROCESSING AND CHARACTERIZATION OF MATERIALS (NCPCM 2017) | 2018年 / 338卷

关键词：

Mechanical properties; Functionally graded material; Plasma Facing Material; Powder metallurgy; Spark Plasma Sintering; W/CU; TEMPERATURE;

D O I：

10.1088/1757-899X/338/1/012042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Five layer W-Cu functionally graded material (FGM) for components in nuclear fusion application was fabricated by a one-step resistance sintering process, known as spark plasma sintering (SPS). In this study effect of sintering temperature (T-s) on physical, mechanical and surface property was investigated. Detailed microstructural study revealed that the graded structure of the composite layers with varying composition from 0 to 100 wt% W and Cu in opposite directions could be well densified after the SPS process. It also indicates that the fine microstructure within functionally graded layers can be maintained because of short sintering time. The sample sintered at 1050 degrees C shows more than 90% theoretical density, hardness greater than 239 +/- 5 Hv and excellent surface scratch resistance. The result demonstrates that SPS is promising and more suitable process for fabrication of W-Cu FGM.

引用

页数：6

共 19 条

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