搜索结果: 1-15 共查到“材料科学 hardness”相关记录15条 . 查询时间(0.053 秒)
Effect of heat treatment on the microstructure, hardness and abrasive wear resistance of high chromium hardfacing
destabilized austenite carbide dry rubber wheel test factorial regression GMAW toughness
2013/2/24
The effect of destabilization heat treatment on the microstructure, hardness, fracture toughness and abrasive wear
resistance of high chromium hardfacing was investigated. The results from the study...
Effect of sedimentation on the final hardness of polymeric particle composites
epoxy resin hardness X-ray analysis waste
2012/2/25
In present days composite materials are the indispensable part of many branches. They make a foray into the branch of agricultural production, where they are getting to intensive development of system...
Hardness to toughness relationship on WC-Co tool gradient materials evaluated by Palmqvist method
Toughness Cemented carbides Palmqvist Powder Metallurgy
2010/6/2
Tool graded materials (TGM) incorporate gradual transitions in their microstructure and composition with distance. The gradients provide means to favourably engineer their thermo mechanical properties...
Influence of nickel on structure and hardness of Fe-Co bulk metallic glasses
nickel structure hardness glasses
2010/1/11
Metallic glasses (also known as metallic amorphous alloys) are newcomers to the group of amorphous materials. First, metallic glass (Au75Si25) was made by Duwez in 1960 and developed with the use of t...
Turning conditions of Ck 45 steel with alternate hardness zones
Machining Mechanical properties Dynamic properties
2009/12/14
Purpose: of this paper is investigation of dynamic impacts on cutting edge during machining of locally hardened steel. Alteration of hardness on a single work piece is a source of impact on tool, whic...
Comparative analysis of methods of hardness assessment
Quality management Statistical methods Measurement system capability Measurements of hardness
2009/12/2
Quality is a challenge that must be taken up by producers and other organisations. A formal requirement of quality are among others ISO 9000 standards, specific branch requirements e.g. ISO/TS 16949 (...
Examining the hardness of the high density polyethylene with method of the cone
Engineering polymers Mechanical properties Hardness
2009/12/1
Purpose: The purpose of this article is to present results of examining the hardness of the high density
polyethylene with method of the cone.
Design/methodology/approach: In the article a method of...
Effects of Powder Hardness and Particle Size on the Densification of Cold Isostatically Pressed Powders
Cold Isostatic Pressing Metallic and Ceramic Powders Mechanical Behaviour
2009/10/12
The densification behaviour of aluminium, iron and alumina powders under cold isostatic pressing (CIP)are examined. For this purpose, a unit which can withstand up to 650 MPa pressure was designed and...
Microstructural and hardness chara-cterisation of sintered low alloyed steel
Powder metallurgy Steel Hardness Microstructure
2008/11/30
Purpose: The purpose of the present study is to produce low ally PM steel without any addition and with addition of ferro-boron addition by conventional PM manufacturing route at the different sinteri...
Surface roughness investigation and hardness by burnishing on titanium alloy
Machining Surface roughness Technology devices and equipment
2008/6/30
Purpose: Burnishing is a chip less machining process in which a rotating roller or ball is pressed against metal piece. It is a cold working process and involves plastic deformation under cold working...
Modelling of hardness prediction of magnesium alloys using artificial neural networks applications
Heat treatment Mechanical properties Artificial neural networks
2008/2/28
Findings: The different heat treatment kinds employed contributed to the improvement of mechanical properties of the alloy with the slight reduction of its plastic properties.
Research limitations/im...
Comparison of the secondary hardness effect after tempering of the hot-work tool steels
Heat treatment Tool materials Hot work tool steels
2007/10/30
Purpose: of this paper was to examine of the secondary hardness effect after tempering of the developed complex hot-work tool steel 47CrMoWVTiCeZr16-26-8 in relation to standard hot-work tool steel X4...
Improvement of hardness and corrosion resistance of SS-420 by Cr+TiN coatings
Corrosion resistive Cr+TiN composite Hardness properties
2007/7/30
Purpose: Double layer Cr+TiN thin films were coated on SS-420 substratum to achieve a corrosion resistive system.Design/methodology/approach: Ion coating technique was employed for deposition of TiN o...
期刊信息
篇名
Hardness Variations during Aging Process of Deformed W-Ni-Fe Ternary Alloys with High Nickel to Iron Ratios
语种
中文
撰写或编译
撰写
作者
Li Ronghua,Huang Jihua,Yin Sheng,Zhao Jun
第一作者单位
University of Sci...
Influence exothermical mixtures contents Na or B on elongation and hardness AlSi12 alloy
Theory of crystallization Al alloys Silumin Crystallization Metallothermy
2007/7/25
The experiments were conducted on alloy AlSi12, following a factor design 23 for 3 independent variables. Mixtures composed of NaNO3, Na2B4O7, and Mg were used for alloy treatment. The amount of a red...