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Trans. Nonferrous Met. Soc. China 24(2014) 2737-2751 Solidification characteristics and hot tearing susceptibility of Ni-based superalloys for turbocharger turbine wheel Zhao-xia SHI, Jian-xin DONG...: The solidification characteristics and the hot tearing susceptibility were investigated on two Ni-based superalloys for turbocharger turbine wheel, K418 and K419. The segregation behaviors......
Hot Tearing of Sand Cast Mg-5 wt.% Y-4 wt.% RE (WE54) AlloyJilin LI,Rongshi CHEN,Yuequn MA,Wei KEState Key Laboratory for Corrosion and Protection,Institute of Metal Research,Chinese Academy of Sciences摘 要:Hot tearing is a common and severe defect occurring during solidification of castings.The rational understanding of hot tearing formation mechanism......
Improvement of yttrium on the hot tearing susceptibility of 6TiB2/Al-5Cu composite张晓波,孙靖,汪明亮,张亦杰,马乃恒,王浩伟State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University摘 要:To improve the severe hot tearing susceptibility of TiB2 reinforced Al-5Cu matrix composites,the present research investigated the influence of Y on the hot tearing......
Improvement of yttrium on the hot tearing susceptibility of 6TiB2/Al-5Cu composite张晓波,孙靖,汪明亮,张亦杰,马乃恒,王浩伟State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University摘 要:To improve the severe hot tearing susceptibility of TiB2 reinforced Al-5Cu matrix composites,the present research investigated the influence of Y on the hot tearing......
Hot Tearing Susceptibility of AXJ530 Alloy Under Low-Frequency Alternating Magnetic FieldXudong Du1,2,Feng Wang1,2,Zhi Wang1,2,Xingxing Li1,2,Zheng Liu1,2,Pingli Mao1,21. College of Materials Science..., a hot tearing measured system with external excitation coil and a differential thermal analysis system with applied magnetic field were used to study the effects of low-frequency alternating magnetic......
Tensile properties and hot tearing susceptibility of cast Al–Cu alloys containing excess Fe and SiKhalil Ganjehfard1,Reza Taghiabadi1,Mohammad Talafi Noghani1,Mohammad Hossein Ghoncheh21. Faculty... to investigate the tensile properties and hot tearing susceptibility of cast Al–Cu alloys containing excess Fe(up to 1.5 wt%) and Si(up to 2.5 wt%).According to the results, the optimum tensile......
现拐点时,说明容器边缘合金开始释放初晶形核潜热,Tn1代表此点温度称为初晶形核第一特征温度；当中心热电偶冷却微分曲线出现第一个极大值时,说明容器内部初晶形核潜热释放结束,Tn2代表此点温度称为初晶形核第二特征温度[18]. 图1 热裂模具示意图和热裂检测装置示意图 Fig. 1 Schematic diagrams of mold for hot tearing(a) and hot-tearing detecting device(b) 图2 双热电偶测试系统示意图 Fig. 2 Schematic diagram of double-thermocouple tested system 根据牛顿基线法计算固相分数,其方程如下[11] ......
拌熔体5 min,然后在720 ℃的温度下保温30 min,确保合金元素彻底扩散和溶解,再将720 ℃的熔融合金浇注到一个预热至200 ℃的"T"型永久模具中."T"型金属型模具的尺寸和几何形状如图1所示. 图1 热裂模具示意图 Fig. 1 Schematic diagram of mold for hot tearing (Unit: mm) 当合金在"T"型金属型模... Mg-6.5Zn-xY-0.5Zr合金热裂敏感性 Fig. 8 Hot tearing susceptibility of Mg-6.5Zn-xY-0.5Zr alloys 图9所示为通过双电偶方法测试得到的枝晶搭接温度.由图9可见,Mg-6.5Zn-2Y-0.5Zr的枝晶搭接温度最高(637.52 ℃),Mg-6.5Zn-6Y-0.5Zr的枝晶搭接温度最低(617.79......
Trans. Nonferrous Met. Soc. China 24(2014) 907-914 Effects of Y on hot tearing susceptibility of Mg-Zn-Y-Zr alloys Zheng LIU, Si-bo ZHANG, Ping-li MAO, Feng WANG School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China Received 17 April 2013; accepted 5 July 2013 Abstract: The hot tearing susceptibility of MgZn2.5YxZr0.5 (x=0.5, 1, 2, 4, 6) alloys......
Trans. Nonferrous Met. Soc. China 26(2016) 3115-3122 Hot tearing susceptibility of Mg-xZn-2Y alloys Zhi WANG1, Yi-zhou LI1, Feng WANG1, Yuan-ding HUANG2, Jiang-feng SONG2, Ping-li MAO1, Zheng LIU1 1..., Geesthacht 21502, Germany Received 7 December 2015; accepted 28 June 2016 Abstract: Effects of Zn content (0, 0.5%, 1.5% and 4.5%) on the hot tearing characteristics of Mg-2%Y alloy were studied......
