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Mechanism of generation of large(Ti,Nb,V)(C,N)-type precipitates in H13 + Nb tool steelYou Xie1,Guo-guang Cheng1,Lie Chen2,Yan-dong Zhang2,Qing-zhong Yan21. State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing2. Xining Special Steel Co.,Ltd.摘 要:The characteristics and generation mechanism of(Ti,Nb,V)(C,N) precipitates......
and Engineering A, 2008, 491(1/2): 70-79. [9] BUHA J. Characterisation of precipitates in an aged Mg-Zn-Ti alloy[J]. Journal of Alloys and Compounds, 2009, 472(1/2): 171-177. [10] MENDIS C L, OH-ISHI K...): 38-42. [15] CHUN J S, BYRNE J G. precipitates strengthening mechanisms in magnesium zinc alloy single crystals[J]. Journal of Materials Science, 1969, 4(10): 861-872. [16] BUHA J. Reduced......
Characterization of α2 Precipitates in Ti–6Al and Ti–8Al Binary Alloys: A Comparative InvestigationSabry S. Youssef1,2,Xiaodong Zheng1,2,Yingjie Ma1,2,3,Sensen Huang2,3,Min Qi1,2,Jianke Qiu2,3,Ruixue...) precipitates in Ti–Al binary alloys.Ti–6Al and Ti–8Al binary alloys were solution treated and aged to obtain Widmanstatten microstructure and promoteα2 precipitates.The TEM results displayed strong short-range......
Microstructure, precipitates and mechanical properties of powder bed fused inconel 718 before and after heat treatmentLe Zhou,Abhishek Mehta,Yongho Sohn摘 要:IN718 alloy was fabricated by laser powder bed fusion(PBF) for examination of microstructure, precipitates and mechanical properties in the as-built state and after different heat treatments......
First-Principles Study of Phase Stability and Mechanical Property of Co_3(Al,W) Precipitates with Different Ratio of Al to W in Co Base Alloys () 摘要:The energetics, electronic structure and mechanical property of Co_3(Al,W) precipitates with different ratio of Al to W in Co base alloys were investigated by the method of supercell and augmented plane waves plus local orbitals within......
低碳Nb微合金钢中Nb溶质拖曳和析出相NbC钉扎对再结晶晶粒长大的影响付立铭1,单爱党1,王巍2(1.上海市上海交通大学材料科学与工程学院2.宝山钢铁股份有限公司研究院)摘 要:通过理论计算并结合实验研究了低碳Nb微合金钢中NbC析出相与Nb固溶原子共同作用对再结晶后奥氏体晶粒长大的影响.结果表明,Nb的溶质原子拖曳与NbC析出相钉扎共同作用阻碍晶粒长大晶界的迁移,高温时NbC析出相的钉扎起主要作用,Nb的溶质拖曳效应并不明显,而相对低温时Nb拖曳对晶粒长大产生明显地抑制作用,理论计算与实验结果吻合良好;溶质原......
用相变晶体学指导Mg-Sn-Mn合金优化设计石章智1,张文征1(1.北京市清华大学材料科学与工程系先进材料实验室)摘 要:以相变晶体学为主要原则对Mg-Sn-X合金进行优化设计.在对现有镁合金系统充分调研的基础上,根据Mg基体与析出相的相变晶体学匹配关系,提出2条相变晶体学判据来判断可能沿Mg基体[0001]α方向择优生长的析出相.根据这2条相变晶体学判据结合相图分析推测在Mg-Sn-Mn系统中可能得到沿Mg基体[0001]α方向择优生长的β-Mn析出相.对Mg-7.5Sn-2.2Mn(质量分数,%)合金时效组......
First-principle investigation on the interfacial structure evolution of the δ’/θ’/δ’ composite precipitates in Al-Cu-Li alloysShuo Wang1,Chi Zhang1,Xin Li1,Houbing Huang1,2,Junsheng Wang1,21. School...="ChDivSummary">The precipitation sequence in Al-Cu-Li alloys is sensitively dependent on the Cu/Li ratio.In the low ratio Cu/Li alloys of 1-2.5,the δ’ phases usually nucleate and grow from the 0’ precipitates......
Effect of cold rolling and first precipitates on the coarsening behavior of γ″-phases in Inconel 718 alloyJing-ling Zhang,Qian-ying Guo,Yong-chang Liu,Chong Li,Li-ming Yu,Hui-jun LiState Key Lab of Hydraulic Engineering Simulation and Safety, School of Materials Science & Engineering, Tianjin University摘 要:The coarsening behaviors of γ″-phase particles......
Coarsening Behavior of Al3(Sc, Zr) Precipitates and Its Influence on Recrystallization Temperature of Al-Mg-Sc-Zr AlloyGang Du, Jingwei Deng, Desheng Yan, Mingjiu Zhao and Lijian Rong Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China摘 要:Effects of intermediate annealing temperature and time after hot working......
