Influence of cBN content, Al2O3 and Si3N4 additives and their morphology on microstructure, properties, and wear of PCBN with NbN binder

被引：19

作者：

Rumiantseva, Yu ^{[1
]}

Melnichuk, Iu ^{[1
]}

Garashchenko, V ^{[1
]}

Zaporozhets, O. ^{[2
]}

Turkevich, V ^{[1
]}

Bushlya, V ^{[3
]}

机构：

[1] Natl Acad Sci Ukraine, VN Baku Inst Superhard Mat, UA-04074 Kiev, Ukraine

[2] Natl Acad Sci Ukraine, GV Kurdyumov Inst Met Phys, UA-03142 Kiev, Ukraine

[3] Lund Univ, Div Prod & Mat Engn, S-22100 Lund, Sweden

来源：

CERAMICS INTERNATIONAL | 2020年 / 46卷 / 14期

关键词：

cBN; Whiskers; Fracture toughness; Phase composition; Wear; FRACTURE-TOUGHNESS; NITRIDE; PERFORMANCE; TOOLS; COMPOSITES; MECHANISMS; WHISKERS; DIAMOND;

D O I：

10.1016/j.ceramint.2020.05.300

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polycrystalline cubic boron nitride (PCBN) tool materials with NbN binder without additives and PCBN with Al2O3 or Si(3)N(4 )micropowder and whisker additives were manufactured and compared. PCBN materials with Si3N4 whisker reinforcement have the best mechanical properties of all the evaluated materials. Composites reinforced with Al2O3 whiskers have the lowest fracture toughness. However, Al2O3 whisker-reinforced tools outperform both commercial and Si3N4 reinforced tools when machining hardened steel. Thus Al2O3 whiske-rreinforced PCBN materials are promising for industrial applications, likely due to their higher resistance to oxidation and diffusional wear mechanisms during cutting operations.

引用

页码：22230 / 22238

页数：9

共 36 条

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