Effects of Zn Interlayer on Microstructures and Mechanical Properties of TC4/AZ91D Bimetal via Solid–Liquid Compound Casting Process

2021 ◽  
Author(s):  
Jingjing Shangguan ◽  
Jianhua Zhao ◽  
Yu Shi ◽  
Cheng Gu ◽  
Bingyan Jin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Casting Process ◽  
Compound Casting ◽  
Microstructures And Mechanical Properties ◽  
Solid Liquid ◽  
Compound Casting Process

scholarly journals Influence of a Zn Interlayer on the Interfacial Microstructures and Mechanical Properties of Arc-Sprayed Al/AZ91D Bimetals Manufactured by the Solid–Liquid Compound Casting Process

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3273 ◽  
Author(s):  
He ◽  
Zhao ◽  
Cheng ◽  
Shangguan ◽  
Wen ◽  
...  
Keyword(s):  
Casting Process ◽  
Arc Spraying ◽  
Optimal Process ◽  
Interface Zone ◽  
Novel Technique ◽  
Compound Casting ◽  
Fracture Behaviors ◽  
Solid Liquid ◽  
Optimal Process Parameter ◽  
Compound Casting Process

A novel technique combining solid–liquid compound casting (SLCC) with arc spraying was designed to manufacture the arc-sprayed Al/AZ91D bimetals with a Zn interlayer. The Al/Mg bimetal was produced by pouring the AZ91D melt into the molds sprayed with Al/Zn double-deck coating, during which the arc-sprayed Zn coating acted as the interlayer. The effect of the Zn interlayer on microstructures, properties, and fracture behaviors of arc-sprayed Al/AZ91D bimetals by SLCC was investigated and discussed in this study. The optimal process parameter was acquired by analyzing the results from different combinations between the arc-spraying time of the Zn coating (10, 18, and 30 s) and the preheat time of the Al/Zn double-deck coating (6 and 12 h). The interfacial microstructures of the arc-sprayed Al/AZ91D bimetals with a Zn interlayer could be approximately divided into two categories: One was mainly composed of (α-Mg + Al5Mg11Zn4) and (α-Al + Mg32(Al, Zn)49) structures, and the other primarily consisted of (α-Mg + Al5Mg11Zn4), (MgZn2 (main) + β-Zn), and (β-Zn (main) + MgZn2) structures. In the interface zone, the (α-Mg + Al5Mg11Zn4) structure was the most abundant structure, and the MgZn2 intermetallic compound had the highest microhardness of 327 HV. When the arc-spraying time of the Zn coating was 30 s and the preheat time of the Al/Zn double-deck coating was 6 h, the shear strength of the arc-sprayed Al/AZ91D bimetal reached 31.73 MPa. Most rupture of the arc-sprayed Al/AZ91D bimetals with a Zn interlayer occurred at the (α-Mg + Al5Mg11Zn4) structure and presented some typical features of brittle fracture.

Numerical simulation of multilayered multiple metal cast rolls in compound casting process

2016 ◽  
Vol 93 ◽  
pp. 518-528 ◽  
Author(s):  
Su-ling Lu ◽  
Fu-ren Xiao ◽  
Zhi-hong Guo ◽  
Li-juan Wang ◽  
Han-yun Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Casting Process ◽  
Compound Casting ◽  
Compound Casting Process

The role of vacuum degree in the bonding of Al/Mg bimetal prepared by a compound casting process

2019 ◽  
Vol 265 ◽  
pp. 112-121 ◽  
Author(s):  
Guangyu Li ◽  
Wenchao Yang ◽  
Wenming Jiang ◽  
Feng Guan ◽  
Haixiao Jiang ◽  
...  
Keyword(s):  
Casting Process ◽  
Vacuum Degree ◽  
Compound Casting ◽  
Compound Casting Process
Sign in / Sign up

Export Citation Format

Share Document