Hardne相关论文
A fundamental theory for the analysis of residual welding stresses and deformation based on the inherent strain distribu......
Thickness effect on microstructural and mechanical properties of pulse-laser treated Ti/Ni multilaye
Previous work showed that pulse-laser irradiation can strengthen metal multilayer thin films through intermetallic forma......
The nanohardness is from 1.44 to 2.61 GPa,the Vickers hardness is from 127 to 252 Vickers,and elastic modulus is from 52......
Influence of Nitrogen Flow Rate on the Microstructure and Properties of N and Me (Me=Cr,Zr) Co-doped
In this paper,Me (Me=Cr,Zr) and N co-doped diamond like carbon (DLC-MeN) composite films were prepared on cemented carbi......
The morphology of chromium in chilled Cu-Cr alloys with 0.14%-2.0% Cr has been studied. The results showed that eutectic......
The microstructure and wear performance of Al2O3-13% TiO2 coatings prepared by plasma spraying of agglom- erated nanopar......
Thermodynamic analysis of the simple microstructure of AlCrFeNiCu high-entropy alloy with multi-prin
AlCrFeNiCu high-entropy alloy (THA) was synthesized by the arc melting and casting method. The alloy exhibits simple FCC......
Thixoforging of steels is a potential forming technology,which aims at producing near-net-shaped components with good qu......
According to the characteristic of two liquid and bimetal composite interface,the influence of the casting techniques on......
The effect of fluidized bed heat treatment (FBHT) on low-carbon Mn-Si cast steel strength properties improvement,strictl......
As a new class of advanced materials,metallic glasses(also often referred as amorphous alloys)possess a combination of u......
Effects of Pouring Temperature on Interfacial Reaction between Ti-47.5Al-2.5V-1Cr Alloy and Mold dur
Pouring temperature and time are the most important influencing factors on interfacial reaction during the centrifugal c......
The tribological properties of AlCoCrFeNi and AlCoCrFeNiTi_(0.5) high entropy alloys under gear oil and multiply alkylat......
Influence of High-Speed Milling Process on Mechanical and Microstructural Properties of Ultrafine Gr
The effects of milling parameters on the surface quality,microstructures and mechanical properties of machined parts wit......
In this paper, a comparison study was carried out to investigate the inlfuence of carbon content on the microstructure, ......
Fabrication and characterization of nanocrystalline Al/Al12(Fe,V)3Si alloys by consolidation of mech
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
In this paper, a comparison study was carried out to investigate the inlfuence of carbon content on the microstructure, ......
The effects of plastic deformation on the evolution of microstructure and micro-hardness were studied on plates made fro......
Fabrication and characterization of nanocrystalline Al/Al12(Fe,V)3Si alloys by consolidation of mech
The aim of this study was to produce bulk nanocrystalline Al/Al12(Fe,V)3Si alloys by mechanical alloying (MA) and subseq......
为进一步提高高温高强瓷化涂料的性能,对高温高强瓷化涂料的制备及耐候性能进行研究。通过显微结构分析、反射率与太阳光反射比测......
为了研究辐照处理结合保藏温度对米糕保藏效果的影响,采用4,6,8,10 kGy剂量辐照米糕,在-18,4℃和常温环境中保藏,对其贮藏期内霉菌......
目的：探讨表面活性剂加氟化钠涂料防治根面龋是否优于单独用氟化钠涂料或洗必泰涂料。方法：在离体牙釉－牙骨质界下开窗4mm×4mm，分......
CrWMn钢为冷作模具钢,要求具有高的硬度、耐磨性以及韧性。其最终热处理通常为淬火和低温回火。为了改善切削加工性能,在最终热处......
在由氨水、有机胺、Na2SiO3、Na2B4O7和添加剂组成的电解液中，以恒电流方式对AZ91D镁合金进行阳极氧化处理，并研究了电解液各组分浓......
提出了多种氧化物与Al原位反应制备陶瓷颗粒增强铝基复合材料的新方法, 并通过3种反应体系CuO/Al, (CuO+SiO2)/Al, (CuO+SiO2+TiO2......
通过冷变形拉拔结合中间热处理制备了纤维相增强的Cu-12%Ag(质量分数)合金,研究了变形过程对组织形态和力学性能的影响.随着变形程......
通过改变Cr靶电流强度，在国产AIP—01型多弧离子镀膜机上制备不同Cr含量的（Ti，Cr）N复合薄膜。研究Cr的添加对薄膜硬度、薄膜相结构及晶......
采用离心铸造方法制备初生Si颗粒单独增强A1-18Si初生Si／Mg2Si颗粒混合增强A1-18Si-5Mg铝基复合材料活塞。研究内浇12尺寸、浇注温......
采用激光喷丸强化技术在镍铝青铜合金(NAB)表面形成细晶层,采用XRD、SEM、EBSD、TEM等方法对其组织结构进行表征,并通过浸泡腐蚀试......
对HXD1C型机车砂箱撑管进行观察,发现其破损的原因是砂子的冲蚀磨损。分析撑管破损的机理,得出结论：撑管最先破损的位置发生在砂子......
ＨＸ－９８１２型三层小套差胶辊是具有中缓冲层的三层复合结构，设计差为１．０ｍｍ。文中对该胶辊的结构设计、胶料配方的优化设计情况及纺纱效果进行了论述......
改变了加工工艺,提高退料环的使用寿命,节约了成本....
采用硬度计、轮廓仪、光学显微镜、扫描电子显微镜等对服役后的U71Mn钢轨气压焊接头的硬度、裂纹形貌及显微组织进行测试与观察,分......
摘要：通过钒含量从0.1%到0.5%的变化，来检测钒含量对灰铸铁气缸套抗拉强度和硬度的影响。结果表明：在灰铸铁中，加入一定含量的钒，能显著......
An alloy having composition Fe73Si13B9Nb4Cu1 was synthesized by melt spinning to investigate the kinetics of crystalliza......
以碳热还原法合成的AlN粉末和市售BN粉末为原料,添加5%Y2O3为烧结助剂,利用无压烧结制备AlN-15BN复合陶瓷,研究了烧结温度对AlN-15......
本实验以绿熟期渝抗二号番茄（Var.Commune Bailey)为材料，0℃冰水混合物为冷却介质，研究了不同冷冲击处理时间（1h,2h,3h,4h)对贮藏期间......
以次郎甜柿为试材,研究低温（（2±1）℃）贮藏条件下1%皂角多糖溶液涂膜与PE膜包装处理对甜柿果实贮藏保鲜效果的影响。结果表明,低温......
为了提高集聚环锭纺成纱质量,介绍其纺纱用胶辊、胶圈的选配原则,以实际集聚纺纱案例分析后胶辊硬度、胶圈搭配对成纱质量的影响,......
研究了强磁场对Al-4％Cu合金时效析出的影响，采用显微硬度测试、X射线衍射以及电子探针等手段研究了材料的组织及性能。结果表明：在其......
采用埋弧堆焊方法在Q235低碳钢基体上制备了Fe—Cr—C耐磨堆焊层。研究了焊后高温加热过程对Fe—Cr—C耐磨堆焊合金组织及硬度的影......
研究利用粉洗盐沫压制生产舔块型盐，通过原料配方试验，分析了舔块原料配比、粘合剂种类、含水量、压强等对压制法生产舔块质量的影响......
采用实验的方法对A1-7Si-0．44Mg合金进行La变质处理及热处理，分析了时效时间、La变质剂加入量对合金组织及硬度的影响。研究发现：未经......
目的为了提高45钢表面性能,采用CO2激光器对其表面进行合金化处理。方法利用带有能谱的扫描电子显微镜（SEM/EDS）、金相显微镜、X射线......
分别制备了未添加和同时添加0.1%（质量分数，下同）锆和0.2%镧的铸态Al-Zn-Mg-Cu合金，然后进行了均匀化、固溶和时效处理，研究了锆、镧的......
Ti-X-N (X=Al， Si 或 Al+Si ) 涂层被 cathodic 弧蒸发种到 cemented 碳化物底层上。涂层的坚硬被 nanoindentation 获得，微观结构被......
Research has been conducted about the hardness prediction for the carburizing and quenching process based on an optimize......
在镁铝系合金中添加MgCO3后,由于生成了大量的弥散的Al4C3颗粒,使得晶粒变细晶界增多,因而使合金中变形晶粒中位错在晶界处受阻,从......
采用化学镀镍方法，在２０Ｍｎ钢齿轮轴的表面上沉积０．０１３－０．０１８ｍｍ厚的Ｎｉ－Ｐ合金镀层，再经３００℃恒温热处理２ｈ，使镀层转变为晶体结构，其表面洛氏硬度大于６２，达到进口同类产品......
