Fabrication of functionally gradient ultrafine-grained WC-Co composites

被引：7

作者：

Yuan, Yigao ^{[1
]}

Ding, Jianjun ^{[1
]}

Wang, Yankun ^{[2
]}

Sun, Weiquan ^{[2
]}

机构：

[1] Donghua Univ, Coll Mech Engn, Shanghai 201620, Peoples R China

[2] Shanghai tool works Co Ltd, Shanghai 200093, Peoples R China

来源：

APPLIED MATERIALS AND TECHNOLOGIES FOR MODERN MANUFACTURING, PTS 1-4 | 2013年 / 423-426卷

关键词：

Ultrafine-grained cemented carbides; Carburization; Compositional gradient; eta-phase; CEMENTED TUNGSTEN CARBIDE; MIGRATION; SIZE;

D O I：

10.4028/www.scientific.net/AMM.423-426.885

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The carburizing heat treatments of ultrafine-grained WC-Co composites with sub-stoichiometric carbon content were carried out, and the microstructures of ultrafine-grained WC-Co carbides before and after treated were characterized by means of scanning electron microscopy and X-ray diffraction. The results show that the functionally gradient ultrafine-grained WC-Co hardmetals with a Co depleted surface and not comprising the eta-phase can be fabricated by carburizing heat treatment. After heat treatment, WC grain sizes in materials are still at the ultrafine grade.

引用

页码：885 / +

页数：2

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