Title :
Study on hardness and tribological properties of high-speed wire electrical discharge machining surface
Author :
Jinkai Xu ; Kui Xia ; Zhe Xu ; Linshuai Zhang ; Zhanjiang Yu ; Huadong Yu
Author_Institution :
Coll. of Mech. & Electr. Eng., Changchun Univ. of Sci. & Technol., Changchun, China
Abstract :
The recast and the carbon layers were fabricated on AZ91D Magnesium (Mg) alloy surface by the high-speed wire electrical discharge machining (WEDM-HS) technology with various working parameters. The mechanical properties and friction behaviors of the layers were investigated by RETC micro-friction, wear tester and Agilent Technologies G200 nano indentation instruments. Results show that compared with the substrate, WEDM-HS samples with double-layer structure exhibited superior excellent mechanical properties and tribological performance. The hardness of recast layer was improved. And this method can enhance durability of AZ91D Mg alloy effectively.
Keywords :
durability; electrical discharge machining; friction; hardness; magnesium alloys; nanoindentation; test equipment; wear testing; AZ91D Magnesium alloy surface; Agilent Technologies G200 nanoindentation instruments; RETC microfriction; WEDM-HS samples; WEDM-HS technology; carbon layers; double-layer structure; durability; friction behaviors; hardness; high-speed wire electrical discharge machining surface; mechanical properties; recast layers; tribological performance; wear tester; working parameters; Friction; Metals; Rough surfaces; Surface discharges; Surface morphology; Surface roughness; Surface treatment; AZ91D Mg alloy; Sliding wear; WEDM-HS; double-layer; nano indentation;
Conference_Titel :
Mechatronics and Automation (ICMA), 2015 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7097-1
DOI :
10.1109/ICMA.2015.7237886
