Wear behaviour of Al<sub>2</sub>O<sub>3</sub>/Ti(C,N) ceramic tool during turning process of martensitic stainless steel

Wang, M.; Zhao, Jun; Wang, L. L.

doi:10.1179/1432891715z.0000000001503

Cited by 1 publication

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, compared with the ceramic tool materials, the traditional tool materials (high-speed steel and cemented carbide) showed a lower red hardness in machining these difficult-to-machine materials, which did not meet the need of high speed machining. Recently, ceramic tools—Al 2 O 3 -based, Si 3 N 4 -based, and TiB 2 -based ceramic tools—exhibited excellent cutting performance in machining the difficult-to-machine materials such as martensitic stainless steel, Inconel 718, ultra-high-strength steel 300 M, heat-treated AISI4140, hardened Cr12MoV mold steel, and Invar36 alloy [1,2,3,4,5,6]. The TiB 2 -based ceramic tool exhibited higher hardness compared with the other ceramic tools, which was attributed to the higher hardness of TiB 2 ceramic than that of the other ceramics.…”

Section: Introductionmentioning

confidence: 99%

Effects of HfB2 and HfN Additions on the Microstructures and Mechanical Properties of TiB2-Based Ceramic Tool Materials

Song

Liang

et al. 2017

Materials

View full text Add to dashboard Cite

The effects of HfB2 and HfN additions on the microstructures and mechanical properties of TiB2-based ceramic tool materials were investigated. The results showed that the HfB2 additive not only can inhibit the TiB2 grain growth but can also change the morphology of some TiB2 grains from bigger polygons to smaller polygons or longer ovals that are advantageous for forming a relatively fine microstructure, and that the HfN additive had a tendency toward agglomeration. The improvement of flexural strength and Vickers hardness of the TiB2-HfB2 ceramics was due to the relatively fine microstructure; the decrease of fracture toughness was ascribed to the formation of a weaker grain boundary strength due to the brittle rim phase and the poor wettability between HfB2 and Ni. The decrease of the flexural strength and Vickers hardness of the TiB2-HfN ceramics was due to the increase of defects such as TiB2 coarse grains and HfN agglomeration; the enhancement of fracture toughness was mainly attributed to the decrease of the pore number and the increase of the rim phase and TiB2 coarse grains. The toughening mechanisms of TiB2-HfB2 ceramics mainly included crack bridging and transgranular fracture, while the toughening mechanisms of TiB2-HfN ceramics mainly included crack deflection, crack bridging, transgranular fracture, and the core-rim structure.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of HfB2 and HfN Additions on the Microstructures and Mechanical Properties of TiB2-Based Ceramic Tool Materials

Song

Liang

et al. 2017

Materials

View full text Add to dashboard Cite

show abstract

Wear behaviour of Al₂O₃/Ti(C,N) ceramic tool during turning process of martensitic stainless steel

Cited by 1 publication

References 1 publication

Effects of HfB2 and HfN Additions on the Microstructures and Mechanical Properties of TiB2-Based Ceramic Tool Materials

Effects of HfB2 and HfN Additions on the Microstructures and Mechanical Properties of TiB2-Based Ceramic Tool Materials

Contact Info

Product

Resources

About

Wear behaviour of Al2O3/Ti(C,N) ceramic tool during turning process of martensitic stainless steel

Cited by 1 publication

References 1 publication

Effects of HfB2 and HfN Additions on the Microstructures and Mechanical Properties of TiB2-Based Ceramic Tool Materials

Effects of HfB2 and HfN Additions on the Microstructures and Mechanical Properties of TiB2-Based Ceramic Tool Materials

Contact Info

Product

Resources

About

Wear behaviour of Al₂O₃/Ti(C,N) ceramic tool during turning process of martensitic stainless steel