Microstructure and Crack Distribution of Fe-Based Amorphous Alloys Manufactured by Selective Laser Melting

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Date

2017

Authors

Zhang, Yuanjie
Song, Bo
Zhang, Lei
Wang, Zhiwei
Shi, Yusheng

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Publisher

University of Texas at Austin

Abstract

In this study, Fe-based amorphous alloys with a length and width of 10 mm and height of 6 mm were prepared by selective laser melting (SLM). X-ray diffraction, Differential Thermal Analysis and Scanning Electron Microscope were used to investigated the effect of scan space and strategy on the crystallization, microstructure, crack distribution and density. The content of amorphous calculated by Differential Thermal Analysis is up to 93%. There is an obviously trend to lower crack distribution and higher density with an appropriate scan spaces and strategies. With the increasing scan space, the density increased first, then gradually decreased, while the crack decreased and then increasing with the scan space.

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