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;mm × 20 mm × 70 mm for ECAP deformation were cut from the center of extruded rod, as shown in Fig. 2(a). These cubic samples were subjected to one pass, two passes, three passes or four...: 275-287. [4] LIU Jian, CHENG Yuan-sheng, CHAN S W N, SUNG D. Microstructure and mechanical properties of 7075 aluminum alloy during complex thixoextrusion [J]. Transactions of Nonferrous Metals......
used to study the difference in shear deformation behavior. 3 Results 3.1 Amorphous properties Figure 2 shows the XRD pattern and DSC curve of the as-cast Ti40Zr10Cu47Sn3 rod. It mainly consists..., 2019ZZTS- 134). References [1] HAYS C C, KIM C P, JOHNSON W L. Microstructure controlled shear band pattern formation and enhanced plasticity of bulk metallic glasses containing in situ formed ductile phase......
read and approved the final manuscrept. Conflict of interest The authors declare no competing financial interests. References [1] XU Yong, ZHANG S H, CHENG M, SONG H W. In situ X-ray diffraction study... , NASIM W, CANADINC D, XIE K, CHUMLYAKOV Y I, KIREEV I V, KARAMAN I. Anomalous work hardening behavior of Fe40Mn40Cr10Co10 high entropy alloy single crystals deformed by twinning and slip [J]. Acta......
；x为破碎废石在混合骨料中的质量分数. 图2 碎石-全尾砂混合骨料堆积密实度计曲线图 Fig. 2 Compactness curve of mixed aggregate for rod mill sand and waste rock 由图2可知,当碎石在混合骨料占比超过60%时,混合骨料的堆积密实度呈下降的趋势,此时充填体在理论上不具备最佳的强度.因此,本次试验选择......
of process parameters on microstructure of upward continuous casting Cu-Mg alloy rod[J]. Nonferrous Metals Engineering, 2017, 7(5): 16-19. [9] 韦大杰, 刘明星, 聂金凤, 等. 高速电气化铁路用铜合金接触线反复弯曲失效分析[J]. 热加工工艺, 2017, 46(1......
晶机制[J]. 中国有色金属学报, 2020, 30(7): 1574-1583. SONG Guang-sheng, NIU Jia-wei, ZHANG Shi-hong, et al. Twinning mechanism of magnesium alloy rod torsion[J]. The Chinese Journal of Nonferrous Metals, 2020, 30... of AZ31 magnesium alloy sheets rolled by medium-high strain rate[J]. The Chinese Journal of Nonferrous Metals, 2019, 29(02): 232-240. [19] LIU X, ZHU B W, XIE C, et al. Twinning, dynamic......
: 10.11817/j.ysxb.1004.0609.2021-40035 钨(W)具有高熔点,高密度,高硬度,高模量,低热膨胀系数,耐磨及耐腐蚀等良好的物理,化学和机械性能,被广泛应用于航空航天,武器装备,核工业等众多领域,是国际热核聚变反应堆(ITER)包层的重要候选材料[1-3].由于钨熔点较高,工业上通常采用粉末冶金的方法进行制备.烧结钨中存在大量的孔洞和杂质,导致其塑性变形能力较差,严重影响其成形性...在第i个原子处的电荷密度. 本模拟为了描述W-W之间的相互作用势,采用ZHOU等[29]改进的EAM势,该势函数已经广泛应用于纳米钨的拉伸,压缩等力学性能的研究[1, 17, 25, 30]. 采用Verlet-velocity方法[31]描述原子坐标和运动轨迹的牛顿方程.整个模拟分为两部分进行,首先在NVE系综下对模型充分弛豫使结构达到能量最小构型,时间步长为0.001 ps,驰豫时间为40......
products (>2 mm) were broken in a disc crusher (SB200, Germany). 30 g comminution products (<2 mm) were ground in a barrel rod mill (XMB-70-II, China) at grinding pulp concentration... and its implication on magnetic separation [J]. Journal of Central South University of Technology, 2016, 23: 3108-3114. [8] ERIC W, SHI Feng-nian, MANLAPIG E. Pre-weakening of mineral ores by high voltage......
, and 80 mm in depth) was placed below the furnace. The temperature in the smelting process was monitored by an S–type thermocouple. The pressure lever with the graphite rod was inflicted on the upper coke.... [3] LI Guang-hui, JIA Hao, LUO Jun, PENG Zhi-wei, ZHANG Yuan-bo, JIANG Tao. Characterization of minerals, metals, and materials [M]. Cham: Springer, 2016. [4] DENNIS W H. Metallurgy of the non-ferrous......
.BOYER[67]曾就钛合金在机身的应用情况进行过总结,本文作者仅讨论前两种合金. β-21S(Ti-15Mo-3Al-2.7Nb-0.25Si)合金是美国Timet公司为国家航天飞机开发的,可制成带材,具有抗氧化性,可作为复合材料来使用.它具有较好的高温特性,并比Ti-6-4具有更好的抗蠕变性能(一般β合金在高温环境下抗蠕变性并不好).β-21S已被波音和P&W用在瞬时650 ℃的高温环境,它... of China, 2007, 17(S): s490-s494. [10] 武宏让. 航空用钛合金[J]. 钛工业进展, 2000, 2(1): 30-31. WU Hong-rang. Aerospace titanium alloy[J]. Titanium Industry Progress, 2000, 2(1): 30-31. [11] ROSENBERG H W. Ti-15-3: A new......
