The Influence of Ag on the Microstructure and Properties of Cu-Ni-Si Alloys

The influence of the mass concentration of Ag on properties of Cu-Ni alloys is investigated. The effect of silver addition on the structure and properties of Cu-2Ni-1Si alloys is determined. The scientific aim of this research is to determine how the addition of silver affects the mechanisms of strengthening silver-modified supersaturated, deformed, and aged Cu-2Ni-1Si alloys. The applied thermo-derivative analysis has allowed us to determine a range of the temperature values for the beginning and the end of crystallization, the phases and eutectics, and the effects of the modification on the solid fraction of the solidified alloy. In addition to the crystallization kinetics, the microstructure morphology, mechanical properties under real operating conditions, and the electrical conductivity have also been investigated. Moreover, the conducted research includes the impact of heat treatment and plastic deformation on the alloy structure and considers the type, share, and distribution of the intermetallic phases and structural stresses caused by coherent phases, as well as the effect of dislocations in the reinforcing phases during aging. Electron microscopy (SEM), micro-area analysis (EDS), optical microscopy, hardness measurements, and conductivity of the tested alloys are utilized to comment on these properties.

[1]  M. Bonek,et al.  Microstructure and Properties of the Copper Alloyed with Ag and Ti Powders Using Fiber Laser , 2020, Materials.

[2]  Z. Rdzawski,et al.  Precipitation Strengthening of Cu–Ni–Si Alloy , 2020, Materials.

[3]  M. Göken,et al.  A review of experimental approaches to fracture toughness evaluation at the micro-scale , 2019, Materials & Design.

[4]  Z. Rdzawski,et al.  Effect of Re addition on the crystallization, heat treatment and structure of the Cu–Ni–Si-Cr alloy , 2018, Journal of Thermal Analysis and Calorimetry.

[5]  M. Król,et al.  Influence of Sr addition on microstructure of the hypereutectic Zn–Al–Cu alloy , 2018, Journal of Thermal Analysis and Calorimetry.

[6]  P. Snopiński,et al.  Effect of cooling rate on microstructural development in alloy ALMG9 , 2018, Journal of Thermal Analysis and Calorimetry.

[7]  T. Tański,et al.  Thermo-derivative analysis of Al–Si–Cu alloy used for surface treatment , 2017, Journal of Thermal Analysis and Calorimetry.

[8]  A. Volinsky,et al.  Effects of Ag Addition on Hot Deformation Behavior of Cu–Ni–Si Alloys   , 2017 .

[9]  L. Dobrzański,et al.  Influence of high strain rates on the structure and mechanical properties of high‐manganes austenitic TWIP‐type steel , 2016 .

[10]  J. Petr,et al.  STRUCTURE AND MECHANICAL PROPERTIES OF HIGH-Mn TWIP STEEL AFTER THEIR THERMO-MECHANICAL AND HEAT TREATMENTS , 2015 .

[11]  M. Król,et al.  Analysis of crystallization kinetics of cast aluminum–silicon alloy , 2015, Journal of Thermal Analysis and Calorimetry.

[12]  L. Dobrzański,et al.  Hot-Working Behaviour of Advanced High-Manganese C-Mn-Si-Al Steels , 2010 .

[13]  L. Jia,et al.  Microstructure and solidification behavior of Cu–Ni–Si alloys , 2009 .

[14]  Z. Rdzawski,et al.  Microstructure and properties of CuNi2Si1 alloy processed by continuous RCS method , 2009 .

[15]  Xingmei Zou,et al.  Calculation of Cu-rich part of Cu-Ni-Si phase diagram , 2007 .

[16]  Liuping,et al.  The Effects of Aging Precipitation on the Recrystallization of CuNiSiCr Alloy , 2005 .

[17]  Dongmei Zhao,et al.  Aging behavior of Cu-Ni-Si alloy , 2003 .

[18]  J. Huang,et al.  Structure and strength of the age hardened Cu–Ni–Si alloy , 2003 .

[19]  Z. Rdzawski,et al.  Thermomechanical processing of Cu–Ni–Si–Cr–Mg alloy , 1993 .