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of adhesive layer on the corrosion resistance of weld joint was also discussed. The results indicate that addition of adhesive can improve the block of heat transfer caused by the interstice of overlap welding and the feature of welding are uniformly continuous without pore or flaw at the welding process parameters as follows, such as laser power of 1650W,welding speed of 35mm/s, defocusing amount of ＋3.0......
MICROSTRUCTURES AND OXIDATION RESISTANCE OF Fe3Al WELD OVERLAY J.R.Sun1,Y.S.Sun1,X.G.Min1,X.Q.Yu1 (1.Department of Materials Science and Engineering,Southeast University,Nanjing 210096,China) Abstract:Using the Fe3Al electrode through manual arc surfacing (MAS),Fe3Al coatings havebeen deposited on the stainless steel substrate.The microstructures,hardness andoxidation resistance of the weld......
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APPLICATION OF COMPUTER NUMERICAL METHOD IN PORE STRUCTURE CALCULATION崔崇,陆宇萍摘 要:<正>This paper compares the results Of calculat-ing pore structure and graphing differential and integralpore size distribution by hand and Computer,and presents thatlagrangian interpolation uesd by calculating pore structure issuitable and reliable.关键词:......
Formulation of grain growth diagram in simulated weld HAZ of Ti-microalloyed steel Kun CUI1,Qi CHEN1,Chibin GUI1 (1.Department of Naval Architecture and Ocean Engineering, School of Naval Architecture and Power Engineering, Navy University of Engineering, Wuhan 430033, China) Abstract:s agreed well with the value of the diagram predicted. Key words:Ti-microaUoyed steel; Grain growth in weld......
Residual stress relaxation in typical weld joints and its effect on fatigue and crack growth Chunyan JI1,Zhengquan WAN2,Liangbi LI1,Zili WANG1 (1.School of Naval Architecture and Ocean Engineering... for predicting the residual stress at hot spot quantitatively is proposed. Based on the formula, an improved fatigue procedure is introduced. Moreover, crack growth of typical weld joints considering......
Mechanism of effect of rare earth oxides on high temperature corrosion resistance of weld metal LI Zhi-yong(李志勇)1, WANG Bao(王 宝)1 , ZHANG Han-qian(张汉谦)2 1. College of Materials Science... Abstract: Through the addition of rare earth oxides into the coating of electrodes, the high temperature oxidation and sulphidation resistance of weld metal were studied. The transfer mechanism......
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