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成分 Table 1 Chemical compositions of Mg-6Zn-xCu-0.6Zr alloys 图1 实验所用到的模具及热裂试样 Fig. 1 Experiment used mold ((a), (b)) and hot tearing specimen (c) 图2 双热电偶分析法示意图 Fig. 2 ... curve and macroscopic crack photos of Mg-6Zn-xCu-0.6Zr alloys 表3 Mg-6Zn-xCu-0.6Zr合金热裂测试结果 Table 3 Results of hot tearing test for Mg-6Zn-xCu-0.6Zr alloys 如图8中热裂纹宏观照片所示,Mg-6Zn-0.6Zr与......
Trans. Nonferrous Met. Soc. China 24(2014) 922-929 Effect of pouring and mold temperatures on hot tearing susceptibility of AZ91D and Mg-3Nd-0.2Zn-Zr Mg alloys Hao HUANG, Peng-huai FU, Ying-xin WANG... on hot tearing susceptibility (HTS) of commercial AZ91D and newly developed Mg-3Nd-0.2Zn-Zr (mass fraction, %; NZ30K) magnesium alloys in gravity permanent mold casting condition. The results indicate......
Trans. Nonferrous Met. Soc. China 28(2018) 1504-1513 Hot tearing behaviors and in-situ thermal analysis of Mg-7Zn-xCu-0.6Zr alloys Zhi WANG1, Ye ZHOU1, Yi-zhou LI1, Feng WANG1, Zheng LIU1, Ping-li... and 3, mass fraction, %) on the hot tearing behavior of the Mg-7Zn-xCu-0.6Zr alloys was investigated with a constrained rod casting (CRC) apparatus, equipped with a load sensor and a data acquisition......
Trans. Nonferrous Met. Soc. China 28(2018) 848-857 Nonmechanical criteria proposed for prediction of hot tearing sensitivity in 2024 aluminum alloy M. H. GHONCHEH1, S. G. SHABESTARI2, A. ASGARI3, M..., 16846-13114, Tehran, Iran Received 1 April 2017; accepted 5 August 2017 Abstract: Two theoretical criteria represented by Katgerman, and Clyne and Davies for prognosticating hot tearing sensitivity were......
Tearing Toughness of Ductile MetalsCui-Hong Li,Qi-Qiang Duan,Zhe-Feng ZhangShenyang National Laboratory for Materials Science,Institute of Metal Research, Chinese Academy of Sciences摘 要:A new parameter, i.e., tearing toughness, was employed to characterize the mechanical properties of some ductile metals(Cu, Cu–2 wt% Be, Cu–Al alloys, and some steels......
Trans. Nonferrous Met. Soc. China 30(2020) 3161-3172 Prediction of hot tearing susceptibility of direct chill casting of AA6111 alloys via finite element simulations Dong-xu CHEN1, Rui-feng DOU2, Jia... Abstract: To predict hot tearing susceptibility (HTS) during solidification and improve the quality of Al alloy castings, constitutive equations for AA6111 alloys were developed using a direct finite element......
to develop new magnesium casting alloys. The temperatures for T6 heat treatment were selected based on the hardness and electrical conductivity measurements. The hot tearing susceptibility of the alloys.../year. Key words: magnesium alloy; casting; LPSO phase; W phase; fluidity; hot tearing susceptibility; corrosion rate 1 Introduction Magnesium alloys are commonly used as structure materials......
break temperature on the air gap and hot tearing indicator were also modeled. The model predicts that the bloom surface temperature increases with the increase of the mold flux break temperature, but the heat flux decreases with the increase of the mold flux break temperature. The hot tearing indicator is much smaller when the mold flux break temperature is higher. Key words: mixed Lagrangian......
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Chicoutimi, Chicoutimi, QC, G7H 2B1, Canada Received 13 May 2010; accepted 25 June 2010 Abstract: The development of a modified 206 alloy whose composition was optimized to minimize hot tearing... the SEED process and injected into a high pressure die casting press. The hot tearing sensitivity results were reported for different alloy variants. The microstructure evolution during the semi-solid......
