Investigation on Microstructure and Mechanical Properties of Directional Solidified DZ417G Alloy with Different Proportion of Recycling Alloy

Microstructure And Mechanical Properties

The DZ417G alloy with different proportion of recycling material was fabricated by directional solidification, and its microstructure and mechanical properties were investigated. The results show that the microstructure of the directionally solidified alloy changes little, which indicates the recycling material has little effect of on the alloy. However, the ductility of the directional solidified alloy with different proportion of recycling material changes greatly. With the increase of the recycling materials, the mechanical properties of the alloy decrease firstly and then increase a little and decrease at last. But the strength of the alloy almost has no change. The alloy with 70%recycle material has the relative better mechanical properties.

Microstructure and Mechanical Properties of an Advanced Niobium Based Ultrahigh Temperature Alloy

Materials Science Forum ◽

10.4028/www.scientific.net/msf.539-543.3690 ◽

2007 ◽

Vol 539-543 ◽

pp. 3690-3695 ◽

Cited By ~ 22

Author(s):

X.P. Guo ◽

L.M. Gao ◽

Ping Guan ◽

K. Kusabiraki ◽

Heng Zhi Fu

Keyword(s):

Mechanical Properties ◽

Electron Beam ◽

Directional Solidification ◽

Room Temperature ◽

Zone Melting ◽

Floating Zone ◽

Temperature Fracture ◽

Ultrahigh Temperature

The microstructure and mechanical properties including room temperature fracture toughness Kq, tensile strengthσb and elongationδ at 1250°C of the Nb based alloy directionally solidified in an electron beam floating zone melting (EBFZM) furnace have been evaluated. The microstructure is primarily composed of Nb solid solution (Nbss), α-(Nb)5Si3 and (Nb)3Si phases. After directional solidification with the moving rate of electron beam gun R being respectively 2.4, 4.8 and 7.2 mm/min, the primary Nbss dendrites, Nbss + (Nb)5Si3/(Nb)3Si eutectic colonies (lamellar or rod-like) and divorced Nb silicide plates align along the longitudinal axes of the specimens. When R = 2.4 mm/min, the best directional microstructure is obtained. Directional solidification has significantly improved theσb at 1250°C and Kq. The maximumσb occurs for the specimens with R = 2.4 mm/min and is about 85.0 MPa, meanwhile, the Kq is about 19.4 MPam1/2.

Thermal Parameters, Microstructure, and Mechanical Properties of Directionally Solidified Sn-0.7 wt.%Cu Solder Alloys Containing 0 ppm to 1000 ppm Ni

Journal of Electronic Materials ◽

10.1007/s11664-012-2263-7 ◽

2012 ◽

Vol 42 (1) ◽

pp. 179-191 ◽

Cited By ~ 29

Author(s):

Bismarck Luiz Silva ◽

Noé Cheung ◽

Amauri Garcia ◽

José Eduardo Spinelli

Keyword(s):

Mechanical Properties ◽

Thermal Parameters ◽

Microstructure And Mechanical Properties

Solder Alloys ◽

Effect of rotation mode on microstructure and mechanical properties of directionally solidified Nb-Silicon based alloys

Procedia Engineering ◽

10.1016/j.proeng.2011.12.569 ◽

2012 ◽

Vol 27 ◽

pp. 1179-1186 ◽

Cited By ~ 2

Author(s):

Meiling Wu ◽

Shusuo Li ◽

Yafang Han

Keyword(s):

Mechanical Properties ◽

Rotation Mode ◽

Silicon Based

Changes in the microstructure and mechanical properties of Al2O3/YSZ directionally solidified eutectic ceramics during long-time heat treatment

Journal of the European Ceramic Society ◽

10.1016/j.jeurceramsoc.2021.09.026 ◽

2021 ◽

Author(s):

Shuoyan Zhai ◽

Juncheng Liu ◽

Qiang Liu

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Long Time

Effects of yttrium on microstructure and mechanical properties of a directionally solidified single crystal superalloy

Materials Science and Engineering A ◽

10.1016/j.msea.2019.02.089 ◽

2019 ◽

Vol 752 ◽

pp. 86-92 ◽

Cited By ~ 4

Author(s):

Kai Guan ◽

Zhaohui Huang ◽

Renjie Cui ◽

Jianchao Qin

Keyword(s):

Mechanical Properties ◽

Single Crystal ◽

Single Crystal Superalloy ◽

Microstructure And Mechanical Properties

Effect of Ca on Microstructure and Mechanical Properties of Directionally Solidified Mg-Zn-Ca Alloys

Materials Science Forum ◽

10.4028/www.scientific.net/msf.993.161 ◽

2020 ◽

Vol 993 ◽

pp. 161-165

Author(s):

Yi Zhang ◽

Xiao Hui Feng ◽

Yuan Sheng Yang

Keyword(s):

Mechanical Properties ◽

Room Temperature ◽

Tensile Tests ◽

Deformation Mechanisms ◽

Prismatic Slip ◽

Growth Orientation ◽

Dendritic Arm Spacing ◽

Main Deformation

The effect of Ca on the microstructure and mechanical properties of directionally solidified (DSed) Mg-3Zn-xCa alloys (x=0.2,0.5,0.8wt.%) was investigated in the present work. The results showed that the DSed samples with the growth rate of 120 μm/s had columnar dendritic structures and the primary dendritic arm spacing (PDAS) decreased with the content of Ca increase. The TEM result indicated that the growth orientation of the DSed Mg-Zn-xCa alloys was , which was independent of the content of Ca. The tensile tests at room temperature showed that the mechanical properties of the DSed Mg-Zn-xCa alloys were strongly affected by the content of Ca. The addition of Ca remarkably improved the ultimate tensile strength (UTS) and the yield strength (YS), while dramatically reduced the elongation (El). Prismatic slip and twinning were the main deformation mechanisms in tensile tests.