Improvement of elevated temperature mechanical properties of Cu–Ni–Sn–Pb alloys

Empl, Doris; Laporte, Vincent; Vincent, E.; Dewobroto, Natanael; Mortensen, Alicja

doi:10.1016/j.msea.2010.03.056

Cited by 12 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1a). The conducted computer-assisted analysis of the structure [5,6] has shown that the amount of the electron compound in the samples cooled at 150 ºС/s is 3.3 times lower in comparison with slowly cooled samples obtained at V cool =45 ºС/s. The differences in the size of lead inclusions are negligible.…”

Section: Resultsmentioning

confidence: 99%

Effects of Crystallization Conditions on Lead Tin Bronze Properties

Martyushev

Petrenko

2014

AMR

View full text Add to dashboard Cite

Research results of cooling speed influence on structure and properties lead tin bronze are given in this article. Cooling speed changed by casting mold heating to various temperatures. Following the researches results it is shown that cooling speed growth leads to growth of hardness, strength on samples stretching. Decrease in cooling speed gives decrease in hardness and strength on stretching, but at the same time the impact strength of samples increases. Results of metalgraphic researches showed that such properties changes are connected with phase structure change of cast samples.

show abstract

Section: Resultsmentioning

confidence: 99%

Effects of Crystallization Conditions on Lead Tin Bronze Properties

Martyushev

Petrenko

2014

AMR

View full text Add to dashboard Cite

show abstract

“…Experimental samples for researches were made by liquid melt pouring of investigated bronze in graphite casting moulds and the subsequent crystallisation at various rates of cooling. Rates of cooling changed by preliminary heating of a casting mould to various temperatures (tmould=20°С, Vcool=158°С/s; tmould=200°С, Vcool=137°С/s; tmould=400°С, Vcool=43°С/s; tmould=600°С, Vcool=25°С/s; tmould=800°С, Vcool=10°С/s; tmould=1100°С; Vcool=0.15°С/s) [7]. The bronze was taken as an investigated material which chemical compound is listed in table 1.…”

Section: Methodsmentioning

confidence: 99%

Copper Alloys Structure Parameters

Martyushev

2014

AMR

View full text Add to dashboard Cite

In this research it was examined the influence of crystallisation conditions binary leaded bronze on parametres of a received microstructure. Change of crystallisation conditions was carried out by change of cooling melt speed, through preliminary heating of casting moulds. Quantitative regularities of influence of cooling rate of explored bronze on parametres dendritic cells, grain size are presented. The data about formation of lead inclusions between dendrites of a copper matrix are published as well. It is shown that high rates of cooling of an order 100-150°С/c lead to dendritic structures formation containing only axes of the first and second order. Decrease of cooling rate at the moment of crystallisation to the values less 15°C/c leads to appearance and growth of axes of 3rd order at dendrites matrix.

show abstract

“…Wang [ 11 ] studied the effect of Ti addition on the microstructure and tensile strength of Cu-Ni-Sn alloy and found that Ti can effectively improve the tensile strength of the alloy and optimize the alloy microstructure. Empl [12] studied the effects of Al, Mn, Zr, B or P elements on the high temperature mechanical properties of Cu-Ni-Sn-Pb alloys, and found that B or P can significantly improve the high temperature mechanical properties of the alloys. The reason is attributed to the combination of capillary pinning and the mechanical shielding of these particles to molten lead inclusions in the alloy.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ni/Sn Ratio on Microstructure and Properties of Cu-Ni-Sn-P Alloy

Chen,

Xiao,

Yuan

et al. 2024

Preprint

View full text Add to dashboard Cite

Cu-1.33Ni-1.35Sn-0.08P(Ni/Sn = 1/1), Cu-0.87Ni-1.82Sn-0.08P (Ni/Sn = 1/2) and Cu-1.78Ni-0.86Sn-0.08P (Ni/Sn = 2/1) alloys were prepared to explore the effect of different Ni/Sn ratios on the microstructure and properties of the alloys. The results showed that the alloy had the best properties when Ni/Sn = 1/2. At peak aging, its tensile strength and conductivity reached 447.3 MPa and 35.5% IACS respectively. Its tensile strength was 65.1 MPa and 88.8 MPa higher than that of the alloys with Ni/Sn = 1/1 and Ni/Sn = 2/1 respectively, and its conductivity was 1.1% IACS and 3.9% IACS higher. All three alloys had obvious dendrite segregation, but the alloy with Ni/Sn = 1/2 had finer dendrites and a more uniform distribution. In addition, the precipitates in the Cu-Ni-Sn-P alloys with Ni/Sn = 1/2 and Ni/Sn = 1/1 were all granular Ni12P5 phases, and the particles of the former are finer. The precipitates in the Cu-Ni-Sn-P alloy with Ni/Sn = 2/1 were rod-shaped. The strengthening mechanisms of the three alloys were Orowan strengthening, grain boundary strengthening, solid solution strengthening and dislocation strengthening, and Orowan strengthening was dominant. The Cu-Ni-Sn-P alloy with Ni/Sn = 1/2 had finer grains and precipitates, resulting in better tensile strength and electrical conductivity.

show abstract

Improvement of elevated temperature mechanical properties of Cu–Ni–Sn–Pb alloys

Cited by 12 publications

References 32 publications

Effects of Crystallization Conditions on Lead Tin Bronze Properties

Effects of Crystallization Conditions on Lead Tin Bronze Properties

Copper Alloys Structure Parameters

Effect of Ni/Sn Ratio on Microstructure and Properties of Cu-Ni-Sn-P Alloy

Contact Info

Product

Resources

About