net-work structure是什么意思

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Analysis on founding metallurgical structure shows causes of turbine blade foundry and hot treatment defects.

本文分析了水轮机组叶片铸造缺陷的产生原因和防止措施,水轮机组不锈钢叶片铸造裂纹的形成是由于铸造热应力和组织应力过大,超过材料的抗拉强度,通过对铸态下的金相组织分析,找出了水轮机叶片铸造与热处理缺陷产生的原因,并提出了改进措施。

The corresponding metallurgical structure,hardness,bend tests and impact toughness of overlay metal,and porosity,anti-heat shock performance of coating were analyzed.

将电弧超声引入堆焊和热喷涂工艺,进行常规堆焊、等离子喷涂和引入电弧超声技术的对比试验,比较其堆焊层的金相组织、硬度、抗弯性能、冲击韧度和热障涂层的孔隙率、抗热震性能,结果表明:电弧超声的加入能够细化堆焊接头的熔合区组织,降低脆硬倾向,改善堆焊接头的抗弯性能和冲击韧性;由于超声波的空化效应、热效应和机械效应,电弧超声改善了喷涂过程的雾化效果,减小了熔滴的颗粒度和涂层中弥散气孔的尺寸,提高了热障涂层的抗热震性能。

Combined theoretical analysis with experiments,effects of technology parameters and different scanning routes on warp,crack and balling phenomenon were investigated;In addition,the relations between chemistry composition,cooling rate and metallurgical structure,microhardness are analyzed for supplying theory guidance and experimental basis.

针对金属零件在选择性激光熔化成形过程中容易产生翘曲变形、裂纹与球化现象等问题,在理论分析与试验的基础上,探讨了其工艺参数与扫描路径对金属粉末在熔化成形中翘曲变形、裂纹与球化的影响,以及化学成分、熔池冷却速度与制件金相组织、显微硬度的关系,为选择性激光熔化技术的发展提供理论指导与实验依据。

Difference of Local Corrosion Behaviors of Archaeological Cast Irons with Four Different Microstructures in Soil;

4种不同金相组织的仿古铸铁在土壤中局部腐蚀行为的差异

Effect of Purifying Agent on the Microstructure and Mechanical Properties of Nodular Graphite Cast Iron;

铁神一号净化剂对铸态球铁金相组织和力学性能的影响

Influence of TIG dressing on microstructure and fracture toughness of welding joint;

TIG熔修对焊接接头的金相组织及断裂韧性的影响

Effect of water on metallographic structure of fire melted mark;

消防射水对导线火烧熔痕金相组织的影响

Quantitative Discriminability of Metallographic Structure;

金相组织定量识别分析研究

The Identification and Evaluation for the Metallographic Structure of RX63CrMoV51 Material Used for Roll Blank;

轧辊辊坯RX63CrMoV51材料金相组织的识别与评定

Through observing the macro-fractographic,micro-fractographic,metallographic organization and inspecting the chemical composition and hardness of the spring steel,the fracture failure reason of keep-spring is analyzed.

观察了弹簧断口的宏观痕迹、微观形态,检测了金相组织以及弹簧钢的化学成分及硬度,分析了保持弹簧断裂失效的原因。

Metallographic Structure Process and Analysis System Based on the Microsoft Office Software;

基于Microsoft Office的金相组织处理与分析系统

System of Automatic Quantitative Analysis of Metallography Microstructure of Spheroidal Graphite Cast Iron;

球墨铸铁金相组织自动定量分析系统

Study of the Metallographic Quantitative Analysis on Fire Copper Wire

火灾中铜导线熔痕金相组织定量研究

RESEARCHES ON THE METAL COMPOSITION AND METALLOG RAPHY OF ANCIENT COINS OF THE XINMANG PERIOD

新莽时期古币金属成分与金相组织剖析

Investigation on quenching microstructures of a new Cr-Mo low-carbon micro-alloyed steel

新型低碳Cr-Mo系合金钢淬火态的金相组织研究

Research on Key Technologies of Automatic Identification System of Metallography Organization;

钢铁金相组织自动识别系统关键技术研究

Hardmetals--Metallographic determination of microstructure

GB/T3488-1983硬质合金--显微组织的金相测定

(b) shall be consistent with the Articles of Agreement of the International Monetary Fund;

（b）应与《国际货币基金组织协定》相一致；

Microstructure and Phase Selection in the Unidirectional Solidification of Zn-Cu Peritectic Alloy;

Zn-Cu包晶合金定向凝固组织及相选择

Investigation on Effects of Different Additions on Microstructures and Properties of Cu-W Alloys;

添加相对CuW合金组织与性能的影响

Investigation on Evolution of Microstructure and Phase in Al-Mg Alloy Solidifying under High Pressure;

Al-Mg合金高压凝固组织与相演变研究

Study on Microstructure and Property of AZ31B Magnesium Alloy Prepared by Solid State Recycling

固相再生AZ31B镁合金组织及性能研究

Analysis on Microstructure of AlSi7Cu5 Alloy Obtained by Slope-liquidus Method

AlSi7Cu5合金斜板近液相线铸造组织分析

HISTOCOMPATIBILITY OF POROUS HYDROXYAPATITE COATING NITI SHAPE MEMORY ALLOY

HAP涂层镍钛记忆合金的组织相容性

Structure analysis of complex alloy phases in as-solidified microstructures of Al-Pd-Fe alloy

Al-Pd-Fe合金凝固组织中复杂合金相的结构分析

Casting and remelted microstructures of ZL201 alloy obtained by liquidus semi-continuous casting

ZL201合金液相线铸造与二次加热的合金组织

Effect of Al Addition on As-cast Microstructure of Mg-5Gd Alloy

Al对Mg-5Gd镁合金铸态显微组织和相组成的影响

Study on Simulation of Structures of Semi-solid Metal Slurry Made by Liquidus Casting Using Phase-field Method;

半固态合金液相线铸造组织相场模拟研究