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US 10,883,152 B2Granted
Dynamically impacting method for simultaneously peening and film-forming on substrate as bombarded by metallic glass particles
AssigneeTaichi Metal Material Technology Co., Ltd.
InventorsKuan-Wei Chen, Jason Shian-Ching Jang, Po-Jen Wei
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Abstract
A dynamically impacting method comprising simultaneously peening a substrate surface and forming a thin film of metallic glass on the substrate surface for increasing the surface hardness, fatigue resistance, anti-fracture toughness and corrosion resistance of the substrate simultaneously.
Claims1
A dynamically impacting method comprising:
- A. preparing metallic glass particles by melting a metallic glass raw material in a vacuum furnace and then quickly cooling and atomizing the raw material to form metallic glass particles;
- and
- B. bombarding the metallic glass particles against a substrate comprising:
- a first bombarding step of high-pressure bombardment by bombarding metallic glass particles at a speed of at least 10 meters/second as driven by a compressed inert gas under a high pressure ranging from 5 bars through 15 bars to harden and smoothen a surface of said substrate;
- and
- a second bombarding step of low-pressure bombardment by further bombarding the metallic glass particles under a low pressure ranging from 0.1 bars through 5 bars to rapidly superimpose a thin film of metallic glass on said surface of said substrate to form a corrosion resistant surface with polishing appearance.
3 more elements
Dependencies are inferred from the claim text.