Crystallization and carbonization of an electrical discharge machined Zr-based bulk metallic glass alloy

Shy-Feng Hsieh; Sung-Long Chen; Ming-Hong Lin; Shih-Fu Ou; Wei-Ting Lin; Mao-Suan Huang

doi:10.1557/jmr.2013.329

journal article·2013-11-28

Crystallization and carbonization of an electrical discharge machined Zr-based bulk metallic glass alloy

Shy-Feng Hsieh, Sung-Long Chen, Ming-Hong Lin, Shih-Fu Ou, Wei-Ting Lin, Mao-Suan Huang

Journal of Materials Research· Volume 28· Issue 22

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Source abstract

Abstract

This study investigated the microstructure and machining characteristics of a Zr38.5Ti16.5Cu15.25Ni9.75Be20bulk metallic glass (Zr-BMG) alloy machined using electro-discharge machining (EDM). After EDM, the hardening effect near the outer surface of the electro-discharge machined (EDMed) Zr-BMG alloy originated from the surface carbides of the recast layer, ZrC and TiC. The thickness of the recast layer, crater size, and the surface roughness increased with greater pulse energy. Furthermore, the EDM can generate a porous recast layer and convert the Zr-BMG alloy surface into a carbide surface, which is a potential method to fabricate biomaterials. Experimental results also show that the material removal rate of this alloy in the EDM process was significantly related to the pulse currentIPand pulse duration τP. Many electro-discharge craters and recast materials were observed on the surface of the EDMed Zr-BMG alloy. The surface roughness of the EDMed Zr-BMG alloy was found to obey the empirical equation ofRa= β(IP× τP)α.

Source: expertdata · Quality: candidate unverified · Source record ↗

Research context

Metals & alloys Ceramics & glasses Biomaterials

OpenAlex topics: Metallic Glasses and Amorphous Alloys · Pigment Synthesis and Properties · Surface Roughness and Optical Measurements

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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