A novel rheological high pressure die-casting process for preparing large thin-walled Al–Si–Fe–Mg–Sr alloy with high heat conductivity, high plasticity and medium strength

Qi, Mingfan; Kang, Yonglin; Xu, Yuzhao; Wulabieke, Zhumabieke; Li, Jingyuan

doi:10.1016/j.msea.2020.139040

Cited by 49 publications

(18 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Tavlanma süresinde tanelerin yavaş büyümesi kararlı fakat sünek bir yapının oluşmasına sebep olmaktadır [24]. Böylece uygulanan yaşlandırma ısıl işlem süresinin oluşması muhtemel tane yapısını doğrudan etkileyebileceği, çekme testi sonucu yapıda küçük gözenekli, büyük gözenekli, ikincil çatlakların ve yırtılma sırtları gibi kopma mekanizmalarının oluştuğu görülebilmektedir [25]. Çalışmada…”

Section: Etik Standartların Beyanı (Declaration Of Ethical Standards)unclassified

TIG Kaynak Yöntemiyle Birleştirilen AISI 304 Malzemelere Uygulanan Yaşlandırma İşleminin Mekanik Özelliklere Etkisinin İncelenmesi

Kaner

2021

Politeknik Dergisi

View full text Add to dashboard Cite

show abstract

Section: Etik Standartların Beyanı (Declaration Of Ethical Standards)unclassified

TIG Kaynak Yöntemiyle Birleştirilen AISI 304 Malzemelere Uygulanan Yaşlandırma İşleminin Mekanik Özelliklere Etkisinin İncelenmesi

Kaner

2021

Politeknik Dergisi

View full text Add to dashboard Cite

show abstract

“…Due to its light weight, high specific strength, high thermal conductivity, high electrical conductivity, corrosion resistance, low thermal expansion coefficient and good fluidity, Al-Si-Mg alloy have been developed in communication field [1][2][3]. With the development of communication technology, the wall thickness of radiators for communication base station is getting thinner and thinner, which increases the possibility of fracture during transportation and installation [4]. Therefore, higher requirements are needed for Al-Si-Mg alloy mechanical performances.…”

Section: Introductionmentioning

confidence: 99%

Precipitation behavior and tensile properties of A356.2 alloy with different high temperature pre-precipitation temperatures

Ding

Chang

Guo

et al. 2022

Mater. Res. Express

View full text Add to dashboard Cite

In order to understand the effect of high temperature pre-precipitation (HTPP) temperature on the precipitation behavior and tensile properties of A356.2 alloy treated by Al-6Sr-7La master alloy, SEM, TEM and tensile tests were applied to investigate the evolution of fracture morphology and precipitates of the alloys under different HTPP temperatures. The results showed that ultimate tensile strength (UTS) and yield strength (YS) of the alloys decrease and elongation (El) increases with HTPP temperature decreasing. When HTPP temperature decreased from 510 °C to 470 °C coarsen coherent β″ phase appear in α-Al matrix, continue to decrease HTPP temperature to 450 °C the main precipitate transformed into semi-coherent β′ phase, leading to the change in mechanical properties. In addition, coarsening and transformation of the precipitate were attributed to the reduction of Si concentration which decreases with HTPP temperature decreasing. Moreover, Si nanoparticles precipitated in α-Al matrix, leading to the decreasing of UTS and YS to certain extent due to reducing Si concentration during aging process.

show abstract

“…The filling ability of alloy melt has a very important influence on the integrity and the surface roughness of the castings especially thin-walled and thin-rod parts with complex structures [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Research on pressure loss and filling ability of semi-solid rheological behavior in squeeze casting

Wang

2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

The filling ability of alloy fluid under pressure is of great significance to improve the dimensional integrity and mechanical properties of thin-walled and slender rods formed by squeeze casting. Insight into the rheological behavior of squeeze casting is beneficial to improve the formability of complex structural parts by optimizing the squeeze casting process. In this work, the Archimedes spiral sample prepared by indirect squeeze casting was applied to investigate the variation of filling length with squeeze pressure and filling speed during the rheological process in squeeze casting. According to the temperature distribution characteristic during the alloy melt filling process, the alloy fluid state was discussed and the spiral filling was confirmed as a semi-solid rheological behavior. The calculation models of pressure loss and filling length were established respectively based on steady-state rheological behavior. Pressure loss is mainly affected by the melt viscosity which is determined by temperature distribution and filling speed of alloy melt in the channel. According to the agreement between the theoretical calculations and the experimental results, the pressure loss and filling length models have been confirmed to be used to quantitatively characterize the filling ability of the aluminum alloy melt in the squeeze casting process.

show abstract

A novel rheological high pressure die-casting process for preparing large thin-walled Al–Si–Fe–Mg–Sr alloy with high heat conductivity, high plasticity and medium strength

Cited by 49 publications

References 69 publications

TIG Kaynak Yöntemiyle Birleştirilen AISI 304 Malzemelere Uygulanan Yaşlandırma İşleminin Mekanik Özelliklere Etkisinin İncelenmesi

TIG Kaynak Yöntemiyle Birleştirilen AISI 304 Malzemelere Uygulanan Yaşlandırma İşleminin Mekanik Özelliklere Etkisinin İncelenmesi

Precipitation behavior and tensile properties of A356.2 alloy with different high temperature pre-precipitation temperatures

Research on pressure loss and filling ability of semi-solid rheological behavior in squeeze casting

Contact Info

Product

Resources

About