材料期刊网

IMPROVEMENT OF DUCTILITY AND TOUGHNESS OF Ni-RICH NiAl AT ROOM TEMPERATURE

CHENG Tianyi Beijing Institute of Technology , Beijing , ChinaCANTORB University of Oxford , UKMcLEANM FLOWERHM Imperial College , UK CHENG Tianyi , associate professor , Faculty of Metallography , Beijing Institute of Technology , Beijing 100081 , China

金属学报(英文版)

In rapidly solidified Ni-34.6 at-% Al alloy,when the cooling the rate during solidification reached the order of 10~6 K/s,the size of the microstructures,such as the grains and substructure of the martensite,decreased dramatically.The various kinds of interfaces with high density and homogeneous dis...

关键词: NiAl , null , null , null

FLOW STRESS OF STEEL 55SiMnVB AT HIGH TEMPERATURES AND HIGH STRAIN RATES

ZHAO Jiarong YANG Jie Wuhan Iron and Steel University , Wuhan , China ZHAO Jiarong , associate professor , Faculty of Rolling , Wuhan Iron and Steel University , Wuhan 430081 , China

金属学报(英文版)

Based on the analyses of hot-deformation mechanism of the steel,a new constitutive equation describing the flow stress of steels was derived.The flow stress data of steel 55SiMnVB have been determined at 900—1200℃,strain rates of 1—100s~(-1)and true-strain of 0.08—0.8.An available evaluated formula ...

关键词: flow stress , null , null

ATOMIC DIFFUSION CONTROL DURING TEMPERING OF STEEL 20Cr11MoVNbNB

FU Changpu HAN Yong Shaanxi Mechanical Engineering Institute , Xi'an , China FU Changpu , associate professor , Department of Materials Engineering , Shaanxi Mechanical Engineering Institute , Xi'an 710048 , China

金属学报(英文版)

Studies were made of the effect of tempering at temperatures from 25 to 750℃ for 0.5 to 100 h on changes of hardness,precipitated phase and its alloying element content as well as activation energy of tempering for quenched steel 20Cr11MoVNbNB.Tempering of the steel at temperatures below 400℃ may be...

关键词: steel 20Cr11MoVNbNB , null , null , null

EFFECTS OF SLIP MODE ON CYCLIC BEHAVIOR OF PRESTRAINED MATERIALS

CHAI Huifen RUAN Zheng FAN Quncheng (Xi'an Jiaotong University , Xi'an , China CHAI Huifen , associate professor , Department of Materials , Xi'an Jiaotong University , Xi'an 710049 , China

金属学报(英文版)

The cyclic behaviours of two prestrained materials with different slip modes have been com- pared.From the analysis of hysterisis loops,it is suggested that the decrease in back stress dominates the cyclic process of Cu-Zn alloy with planar slip mode,while the decrease in frictional stress is the ma...

关键词: slip mode , null , null , null

FATIGUE BEHAVIOUR OF M/B DUPLEX STRUCTURE IN A HIGH CARBON Cr-Mo-W STEEL

TIAN Baohong ZHENG Shi'an WU Lei Luoyang Institute of Technology , Luoyang , China ZHENG Shi'an , associate professor , Department of Materials Engineering , Luoyang Institute of Technology , Luoyang 471039 , China

金属学报(英文版)

Determination was carried out of fatigue crack propagation rate of steel 65Cr5Mo3W2VSiTi (LM2)with various bainite contents and M/B duplex structure tempered at various tempera- tures.The threshold value of fatigue for each processing was estimated by experimental data. The mechanism for fatigue cra...

关键词: duplex structure , null , null , null

稀土对工业纯铁中温内耗的影响

戢景文 , 赖祖涵 , 吴玉琴 , 张国福 , 李广义

金属学报

研究了稀土对工业纯铁中温内耗的影响.结果表明:其影响程度和热处理过程密切相关,铁中稀土有合金化作用.炉冷后变形铁在600℃时效,仍存在Snoek Ke-Koster(以下简称SKK)峰;随时效温度升高,SKK峰温度T_p不是单一下降,在600℃时效出现明显回升。

关键词: 内耗 , associate professor , Department of Physics

An Example of the Scientists—Congratulate Professor SHI Changxu on His Seventyth Birthday

DirectorsBoardofInstituteofMetalResearch , AcademiaSinica

金属学报(英文版)

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Professor XU Zhong-yu and his research activities

新型炭材料

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Preface to Special Issue on Photocatalysis for celebrating the 20th anniversary of Professor Jimmy C. Yu’s return to Hong Kong and leading photocatalytic research there

催化学报 doi:10.1016/S1872-2067(15)61006-3

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SUBSTRUCTURE ALTERATION OF STAINLESS STEEL DURING CONSTANT STRAIN FATIGUE

WANG Jingyi Xi'an Institute of Technology , Xi'an , ChinaTAN Yuxu MA Zenghai Xi'an Jiaotong University , Xi'an , China Institute of Mealic Materials and Strength , Xi'an Jiaotong University , Xi'an 710049 , China

金属学报(英文版)

The alteration of substructure of an austenitic stainless steel has been investigated during con- stant strain fatigue.No plateau stage on the cyclic stress-strain curve was observed for the stainless steel in contrast with a monocrystalline pure copper specimen.This may relate to its low stacking f...

关键词: austenitic strainless steel , null , null