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PARTICLE BOUNDARIES AND FRACTURE OF A POWDER METALLURGY SUPERALLOY

MAO Jian YANG Wanhong WANG Wuxiang ZOU Jinwen ZHOU Ruifa Beijing Institute of Aeronautical Materials , Beijing , China MAO Jian , senior engineer , Beijing Institute of Aeronautical Materials , Beijing 100095 , China

金属学报(英文版)

Nature of PPB precipitation of P/M Rene'95 and its effects on mechanical properties,frac- ture morphology and microfracture characteristics are discussed.Dense PPB precipitates make the boundaries brittle and lower the plasticity of the alloy.Fracture path is along the boundaries of particles.As PPB...

关键词: Rene'95 , null , null , null

A computer aided system for stimulating weld metal solidification crack

Yanhong WEI , Yingchun ZHANG , Renpei LIU , Zujie DONG

材料科学技术（英文）

A computer-aided system for simulating weld solidification crack has been developed by which a welding engineer can carry out the welding solidification crack simulation on the basis of a commercial finite element analysis software package. Its main functions include c...

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大梁带复合材料铺放系统设计及其仿真

杨涛 , 李开越 , 姜锋 , 高殿斌

玻璃钢/复合材料 doi:10.3969/j.issn.1003-0999.2008.03.012

大梁带芯模较长(9m),宽度较窄(50mm),因此将大梁带铺放设备设计为龙门式结构.主要包括X、Y轴直线运动机构和Z轴旋转运动机构.将预浸带铺放过程中所必需的放料装置、除膜装置、张力控制装置、施压装置、剪切装置集中设计在铺放头内部.在Pro/Engin...

关键词: 预浸带铺放 , 铺放头 , 复合材料 , 仿真

Numerical Analysis of Secondary Cooling in Continuous Slab Casting

Kee-Hyeon Cho , Byung-Moon Kim

材料科学技术（英文）

In the present study, a numerical optimization program has been developed for predicting the optimal secondary cooling patterns in a continuous slab caster. Optimization strategy using Broydon-Fletcher-Goldfarb-Shanno (BFGS) method is carried out by determining the constant heat transfer coefficient...

关键词: Continuous casting , null , null

METALLOGRAPHIC STUDY ON SEGREGATION BEHAVIOUR OF P IN COLD-ROLLED Fe-P ALLOYS DURING ANNEALING

NING Hua ZHANG Lixin Institute of Corrosion and Protection of Metals , Academia Sinica , Shenyang , China

金属学报(英文版)

The segregation behaviour of P and its effect on structure of 70%-reduction cold rolled Fe-P alloys containing different contents of P,e.g.,0.007,0.06 and 0.09% P,during annealing at 200-700℃ under vacuum have been studied by means of metallography and EPMA.The P was found to segregate preferentiall...

关键词: P , null , null , null