热宽带钢连轧机调宽轧制工艺参数研究

模拟宝钢２０５０ｍｍ热带钢连轧粗轧机组调宽轧制工艺，得到不同铸坯宽度压下效率、立辊轧制狗骨高度和宽度以及平轧轧制时宽展量等的变化规律。为制定合理的调宽轧制压下规程，Ｒ４机架轧后板坯实现最小切头、切尾损失，最大程度实现连铸坯宽度尺寸集约化提供了可靠的依据。     

PREPARATION AND CRYSTALLINE MICROSTRUCTURE OF RAPIDLY SOLIDIFIED NEW AMORPHOUS Al－Fe－V－Si－Mm ALLOY

ＰＲＥＰＡＲＡＴＩＯＮＡＮＤＣＲＹＳＴＡＬＬＩＮＥＭＩＣＲＯＳＴＲＵＣＴＵＲＥＯＦＲＡＰＩＤＬＹＳＯＬＩＤＩＦＩＥＤＮＥＷＡＭＯＲＰＨＯＵＳＡｌ－Ｆｅ－Ｖ－Ｓｉ－ＭｍＡＬＬＯＹＷａｎｇＪｉａｎｑｉａｎｇ；ＧｕＴａｏ；ＺｅｎｇＭｅｉｇｕａｎｇ；Ｃｈｅｎ...     

Graph-based fine-grained model selection for multi-source domain

Pattern Analysis and Applications - The prosperity of datasets and model architectures has led to the development of pretrained source models, which simplified the learning process in multi-domain...     

DOSP: an optimal synchronization of parameter server for distributed machine learning

The Journal of Supercomputing - In distributed machine learning (DML), the straggler problem caused by heterogeneous environment and external factors leads to high synchronization overhead and...     

碳酸二甲酯合成及应用

本文介绍了合成碳酸二甲酯的原理、工艺路线及研究进展。简述了碳酸二甲酯的主要用途。     

TiAl合金层片组织的瑞利分解现象及应用

ＴｉＡｌ合金层片组织具有相当好的室温断裂韧性和抗高温蠕变性能，但层片团中强烈的塑性各异性导致其室温塑性很低。研究了Ｔｉ－４６．５Ａｌ－２．５Ｖ－１Ｃｒ（ａｔ．％）合金层片组织发生瑞利分解（Ｒａｙｌｅｉｇｈ‘ｓＢｒｅａｋｄｏｗｎ）现象的热处理条件及σ２片间断对塑性的作用，实验发现，在一定温度区间进行循环热处理过程中，α２相的溶解析出相变能有效地强化瑞利分解现象，α２层片发生瑞利分解后，从４点弯曲实验     

GRAIN BOUNDARY CHARACTER DISTRIBUTION, TEXTURE AND SUPERPLASTIC DEFORMATION BEHAVIOR OF AN AI-Li ALLOY

The grain boundary character distribution and thetexture of 2091 Al-Li alloy recrystallized at different temperatures were measured by TEM and X-ray techniques respectively. The occurrence frequency of low-energy boundaries decreases with increasing recrystallization temperature, while the frequency of highenergy boundaries increases. The strongest component of recrystallization texture in the test temperature range is {011} <111>. The relative intensity of the texture tends to decrease with increasing recrystallization temperature. The material which contains a high frequency of low-energy boundaries exhibits lower deforming stress and high elongation.     

快速凝固高温铝合金纳米相的粗化

用XRD、TEM和EDX分析确认：快凝Al－8．47Fe－1．26V－1．67Si合金在高温时效后，显微组织由．ffcα－Al和bccα－Al13（F3，V）3Si弥散纳米粒子组成．后者的粗化动力学规律符合体扩散控制的LSW机制．在427和482℃高温状态下的界面能分别为0．185和0．245J·m-2，即α粒子与基体间存在非共格关系     

建筑用高强抗震钢筋

介绍了抗震钢筋的开发与应用研究现状,提出了抗震钢筋存在的问题及改进措施。     

Electronic Structures and Alloying Behaviors of Ferrite Phases in High Co-Ni Secondary Hardened Martensitic Steels

1. IntroductionSuperior combination of strength and fracturetoughness in secondary-hardened high Co-Ni martensitic steels is achieved through the fine precipitation ofmetastable MZC carbides (M=Cr, Mo, Fe) in a ductile Fe-Ni-Co ferrite (tempered martensite) mains.The first group of these steels are the HPg-4-X series,containing gNi, 4Co, ICr, IMc, 0.5V, and 0.2-0.45C(wt pci), followed by HY180 alloys containing 10Ni,SCo, ZCr, IMc and 0.2C (wt pci)l']. In 1978, thegeneral dynamics …