The Marcinkiewicz-Zygmund inequality and the Bernstein inequality are established on which is the space of polynomial sp......

Coupled with hot-continuous rolling technology and based on the calculation of the finishing rolling impact work in the ......

这个由家族企业建造的招待所用来接待包括当地政客在内的各种客人和家族直系亲属。建筑位于海滨度假城镇蒲郡,建于上世纪30年代、......

THERE is an indissoluble bond between Yunnan and me. I first went there in 1970 after graduating from university in the ......

Non-quenched and tempered (NQT) steels have been applied for auto forging products at the aim of lower cost since 1980’......

The finishing rolling elongationδof the alloying non-quenched and tempered steel is calculated with the covalent electr......

In this work, the influence of sub-zero Celsius treatment and tempering on the mechanical and thermal stability of retai......

Computer aided design of heat treatment for AISI P20 mold steel with good machinability is attempted to proceed by the c......

The low-energy, multi-impact fracture resistance and the abrasiveness of the cross-rolled low alloy white cast iron grin......

During aging at a temperature ranging from 650-950 ℃,the ferric matrix in duplex stainless steels undergoes various dec......

The influence of Nb on microstructure,mechanical property and the transformation kinetics of the coarse grain heat affec......

The 150mm 610MPa grade ultra-heavy plates was successfully exploited with 320mm casting slab,and the microstructure and ......

High-Si spring steel was heat treated in three different ways:Quenching and tempering at 460 ℃ to obtain a tempered mar......

The earliest description of the earthquake in China appeared in prehistoric myths. It is recorded in the Huai Nan Zi, a ......

EP-823 steel is one of the candidate materials for accelerator-driven systems/lead-cooled fast reactors(ADS/LFR).Its wel......

1 Alloy compositions There is a great composition difference between these two steels mentioned above, due to the high C......

Retained austenite is transformed into martensite in the fatigue plastic zone in amatensitic ultra-high strength low ca......

The stability of ultra-fine microstructure during tempering at 650℃ was investigated on a Nb-containing steel. The stee......

The metallurgical properties and fatigue life of bearing steel processed by electric furnace (EAF), ladle refining (LF-V......

The effect of relaxation after finished rolling on structures and properties of four microalloyed steel with different ......

In the last years a variety of plasma sources have been developed for film deposition by plasma activated deposition tec......

The influence of heat treating on mechanical properties as well as on the sliding wear behavior of sintered Fe-1.5Mo-0.......

【美文导读】J.K.罗琳以及她的“哈利·波特”风靡全球,在全世界掀起了一股“哈利·波特”热。但影响罗琳一生的却是儿时母亲让她......

英语中常借动物的特性来形容人的特性,这种比喻性表达法往往因语言、文化的不同而具有不同的含义。下面,我们比较一下汉英两种语言......

with+n.+predictive形式比较口语化,常常在句中单独使用,很类似于独立结构,所以,有的语法家就干脆称之为独立结构。它在句中通常兼......

1．rat(鼠)汉语中有“胆小如鼠、鼠目寸光、鼠肚鸡肠”及“鼠辈”等词语,可见鼠在汉语中大多是贬义。英语的rat指人时也有贬义:a rat......

小朋友, 你一出生就有一个可爱的动物伴随着你, 知道它是什么吗? 对, 它就是我们的生肖。看, 过年啦! 十二生肖齐聚会, 欢欢乐乐庆......

A formula is derived for determining the influence of temperature and loading rate on dynamic fracture toughness of a hi......

Nanoindentation measurement was performed to evaluate the local hardness distribution for quenched and tempered martensi......

Al-Si closed-cell aluminum foam bare boards of 1 240 mm×1 100 mm with different densities and thicknesses wereprepared ......

The alloying design of cast hot-forging die steels was analyzed.The relationship of the life of east hot-forg- ing dies ......

The secondary hardening, the austenite grain coarsening and the surface decarburization phenomenon of Nb-bearing spring ......

马来西亚人随和且有好脾气，即便如此，大家还是要了解他们的禁忌，以便更好地相处。　　Malaysia is one of the colourful countries o......

A review was made on the research progress of wear behavior of PM steels in recent years. Wear is not an intrinsic prope......

The present study aims at developing the high speed steel (HSS) as roll materials to replace the traditional roll mater......

A martensitic microalloyed steel, 25Si2MnCrMo, was developed to meet the demands of the high-strength bars. Microstructu......

Low cycle fatigue behaviour of a steel 55NiCrMoV7 under four tempered conditions is reported. One special type of total ......

In order to avoid serious distortion and cracking that may occur with nitrided parts while quenching and tempering, a no......

The effect of heat treatment parameters on the strength and plasticity and the metallographic structures and substructur......

In this paper we compare the wear behaviour of a vacuum-heat-treated ESR AISI M2 high-speed steel and the same steel tha......

A nanostructured surface layer was fabricated in a quenched and tempered 0.4C-lCr low alloy steel by ultrasonic particul......

Microstructure evolution during tempering of quenched steel was studied via dilatometric experiments. Temperature ranges......

The effects of heat treatment on tnicrostructure and hardness of laser surface-clad Ni2 !+20%WC+0.5%CeO2 on the heat-res......

The structure and hardness of SCrWMoV steel with multiple types of ultra fine carbides are studied after annealing, quen......

Grain boundary segregation of phosphorus during tempering at 540℃ after quenching from 980℃ is examined for a P-doped ......

1.IntFOdUction AustemPered Duetile Iron(ADI)15 a relatively newmaterial in east alloy family.Its mierostrueture eonsists......

The secondary hardening reaction is accompanied with precipitation of fine carbides in high CoNi ultrahigh strength ste......

The superplastic deformation characteristics, of commercial 40Cr (i.e., 5140) steel that was water-quenched only 1 times......

The hardness, tensile strength and impact toughness of one quenched and tempered steel with nominal composition of Fe-0......

In this paper, the study group has researched the comprehensive performance and application of the content of sulfur pro......