The gross section fine grain material can be obtained by radial forging.
径向锻造可获得全截面细晶材料,并实现高合金难变形材料由 锭到材的一火次锻造。
5h+50% cold rolling +890℃×10h+20%-30% cold rolling+950℃×3h led to a fine grain structure of A.
5h + 5 0 %冷轧变形 + 890℃× 10h + 2 0 %～ 30 %冷轧变形 + 95 0℃× 3h的工艺后 ,可以得到ASTM 12～ 14级的超细晶粒组织 ;所获得的超细晶合金与普通合金相比 ,其 6 5 0℃高温抗拉强度及伸长率均有所提
The use of the die successfully produced superfine grain columnar material with average grain size as 1.
5μm的超细晶粒纯铜柱状材料,经实验分析,所获得超细晶粒纯铜的许多力学性能指标均得到了提高,抗拉强度从原来的235MPa提高到420MPa,硬度从114HV提高到184。
The planking of superfine grain is made by the mold in laboratory,such as 5A02.
利用该模具,可以在实验室制备具有超细晶粒度的板状材料。
On the new types of cemented carbides-fine and ultrafine grain cemented carbides and cermet carbides;
现代刀具材料系列讲座(五)——新型硬质合金──细晶粒与超细晶粒硬质合金和Ti(C,N)与TiC基硬质合金
And the relationship of initial powder size and preparation of fine grain Ti (C,N)- based cermets and its study signifi- cance are pointed out.
综述了粉末冶金法制备Ti(C,N)基金属陶瓷过程中粉末粒度的作用,以及其对材料最终组织性能的影响;并指出了原始粉末粒度与细晶粒Ti(C,N)基金属陶瓷制备工艺的关系及其研究意义。
Some prospects on fine grained Ti(C, N)-based cermets are discussed.
对近年来国内外有关细晶粒Ti(C,N)基金属陶瓷制备技术的研究成果进行了分析总结。
Microstructure and properties of over-heated zone and fine-grained zone of 10Ni8CrMoV steel;
10Ni8CrMoV钢焊接过热区和细晶区的组织与性能
The fatigue deformation and damage behavior of ultrafine-grained copper produced by equal channel angular pressing were investigated at different stress amplitudes ranging from 100 MPa to 200 MPa.
分别在应力幅为100 MPa、150 MPa和200 MPa下研究了等通道转角挤压制备的超细晶铜的疲劳变形及损伤行为。
Large size materials with ultrafine grains can be achieved easily by ARB process,whose tensile strength is usually 2?4 times compared with those of coarse grain materials.
对采用累积叠轧工艺制备超细晶组织的技术进行详细的综述,介绍了累积叠轧技术的原理、ARB材料的组织与力学性能特征,并对ARB变形过程中的剪切变形、晶粒细化机制和强化机制进行分析。
The machincal property and the formation mechanism of deformation induced ultrafine grains are reviewed.
叙述了形变诱导相变的定义和基本特征,介绍了形变诱导超细晶的机械性能、形变诱导铁素体相变原理,以及该技术在低碳钢板材轧制工艺中的应用前景。
The characteristic microstructure,property,and the formation mechanism of deformation induced ultrafine grains are reviewed.
介绍了形变诱导相变现象的定义和特点,论述了形变诱导超细晶的显微组织和性能特点及其形成机理,同时介绍了形变诱导相变现象在板材轧制工艺中的应用前景。
The development of ultra-fine grain hot-rolled strips and wire rods in Anshan Steel Group was introduced.
主要介绍了鞍钢超细晶粒热轧卷板和线材的研制情况,总的研制思路是结合鞍钢设备的实际情况,探索低成本的超细晶粒钢的生产工艺路线。
In order to research the microstructures and mechanical properties of hot rolling sheets with ultra-fine grain,influence of deformation temperature on austenite recrystallization grain size are studied through adopt GLEEBLE hot simulate test method.
为了研究碳素超细晶粒热轧钢板的显微组织及力学性能,采用GLEEBLE热模拟实验方法,研究了变形温度对奥氏体再结晶晶粒尺寸的影响,研究了冷却工艺和卷取工艺对铁素体晶粒细化的影响,探讨了热连轧过程中的变形诱导铁索体相变规律。
Investigation of Microstructure and Mechanical Properties for A356 Alloys Melted with Grain-refining Aluminium Ingots;
细晶铝锭熔炼的A356铝合金组织与性能研究
The results show that the grains of the test samples added Ti by grain-refining aluminium ingots(GRAI) are fine,and precipitated phases are fine and disperse in as-cast state,and its mechanical properties is the best,especially its elongation is markedly higher than that of other test samples.
用SEM和EDS等方法研究了细晶铝锭熔铸的3003铝锰合金以及Al-10Ti中间合金、Al-5Ti-1B中间合金细化的3003铝锰合金铸态及均匀化处理状态的组织和力学性能。
Through the experiment on grain refining efficiency,grain average diamaters of grain-refining aluminium ingots are less than 350 μm.
郑州大学采用纯铝的电解设备,通过向铝电解槽中添加Al2O3和TiO2混合物的方式,直接电解生产出细晶铝锭。