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Deformation twins and twinning at ambient temperature in cryomilled Al-Zn-Mg-Cu alloy powders CHEN Han-bin(陈汉宾)1, CHENG Jun-sheng(程军胜)2, YANG Bin(杨 滨)1, 3, ZHANG Ji-shan(张济山)1, TIAN Xiao-feng(田晓...; Abstract: The nanocrystalline Al-Zn-Mg-Cu alloy powders were synthesized using cryomilling. Deformation twins and twinning at ambient......
Interaction of crack with twins in hot-rolling AZ31 magnesium alloys during in-situ TEM straining experiments WU Luo-yi(吴落义)1, WU Cui-lan(伍翠兰)1, XIA Wei-jun(夏伟军)2, CHEN Zhen-hua(陈振华)2 1. Center...> Abstract: In-situ straining experiments in transmission electron microscopy were performed to investigate the propagation of crack, twinning and interaction of crack with twins. Lots of micro-twins were......
: quenching rate; spring steel; microstructure; mechanical properties; micro-nano-scale twins 近年来,中国高铁行业取得了突飞猛进的发展[1].高铁列车速度高达200~300 km/h,弹簧作为其中起制动,缓冲,减震作用的关键零部件对列车的平稳安全运行起到至关重要的作用.在常用的弹簧钢材料中..., TAO N R, LU K. 316L austenite stainless steels strengthened by means of nano-scale twins[J]. Journal of Materials Science & Technology, 2010, 26(4): 289-292. [11] 刘宗昌, 计云萍, 段宝玉, 等. 板条状马氏体的亚结构及形成机制......
of Nonferrous Metals Society of China, 2018, 28(6): 1094-1102. [6] LI X, YANG P, WANG L N, MENG L, CUI F. Orientational analysis of static recrystallization at compression twins in a magnesium alloy AZ31[J...; aging; microstructure; twins Foundation item: Project(51675092) supported by the National Natural Science Foundation of China Received date: 2019-01-25; Accepted date: 2019-05-20 Corresponding author: XU......
process, the microstructures with sub-micron grains of 0.2-0.6 μm and some nano-sized grains of 20-50 nm are obtained under the functions of dislocation walls and twins intersection through multiple processing of ECAP and thermomechanical treatment. Key words: titanium alloy; forging; equal channel angular pressing; multiple thermomechanical treatment; dislocation walls; twins intersection......
STRAIN RATE SENSITIVITY OF ULTRAFINE-GRAINED Cu WITH NANOSIZED TWINS L. Lu1,L.X. Liu1,X.H.Chen1 (1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China) Abstract:An ultrafine-grained Cu sample with a high density of growth twins was synthesized by means of pulsed electrodeposition technique. The strain rate......
Interactions between dislocations and twins in deformed titanium aluminide crystalsGuang Yang1,2,Shang-Yi Ma2,Kui Du2,Dong-Sheng Xu3,Sen Chen1,2,Yang Qi4,Heng-Qiang Ye1,21. School of Materials...="ChDivSummary">Using scanning, transmission electron microscopy and aberration-corrected scanning transmission electron microscopy, we have studied the interactions between dislocations and twins in impact......
A Method to Distinguish Twinning Variants and Second Twins by EBSD MeasurementsXinli Wang1,Wenbin Dai2,Rui Wang3,Xinzhong Tian3,Xiang Zhao21. Research Institute,Northeastern University2. School... twins from twinning variants by electron back scattered diffraction(EBSD).To clarify the orientation relationship between the neighboring crystals,the misorientation calculation by MATLAB software......
Nucleation of dislocations and twins in fcc nanocrystals: Dynamics of structural transformationsAleksandr V.Korchuganov1,Aleksandr N.Tyumentsev1,2,Konstantin P.Zolnikov1,Igor Yu.Litovchenko1,2... an atomic model for the generation of dislocations and twins based on local reversible fcc→bcc→fcc transformations, with the reverse one proceeding through an alternative system. The model gives......
Effect of Pre-cold Rolling-Induced Twins and Subsequent Precipitated x-Phase on Mechanical Properties in a β-Type Ti–Mo AlloyLi Xiang1,Xiao-Hua Min1,Xin Ji2,Satoshi Emura2,Cong-Qian Cheng1,Koichi...="ChDivSummary">This paper reported an effectiveness of pre-cold rolling-induced{332}\113[twins combined with subsequent isothermal x-phase formation for enhancement of uniform elongation in a b-type......