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shelling or spalling, even more, to reduce the crack propagation angle and the crack propagation depth in steady state as well as the plastic deformation area, and to improve work-hardening of the rail steel. Key words:rare earths; rail steel; contact fatigue; plastic deformation; work hardening; [全文内容正在添加中] ......
J. Cent. South Univ. Technol. (2010) 17: 1000-1005 DOI: 10.1007/s11771-010-0590-5 Improved model to SOLVE influence coefficients of work roll deflection ZHAO Tie-yong(赵铁勇), XIAO Hong(肖宏... of virtual bending force, a rational explanation for SHOHET’s model was presented. Considering the deformation characters of the work rolls in four-high mill, the deformation model of the work roll......
Received 9 May 2014; accepted 13 July 2014 Abstract: The influences of strength coefficient K, work hardening exponent n and thickness t of the overlapping sheet on bulging process are analyzed based..., larger work hardening exponent n and proper thickness of the overlapping sheet are helpful to improve the formability and forming uniformity of formed sheet metal. Key words: overlapping sheet......
(SEM), and tensile testing were carried out to study changes and mechanisms of the stainless steel structures and properties during work-hardening and annealing-softening. The results indicate... the oxidized layer is very thick. Thus, high-temperature annealing should include bright annealing. Key words: 304 austenitic stainless steel; work hardening; annealing softening; deformation twinning......
and then to the completed dynamically re-crystallized. The martensitic transformation characteristics depend on the austenite states. The work-hardening in small strain is helpful to martensitic... enhance the martensitic nucleation due to the low dislocation density near its grain boundary. Key words:Fe-32％Ni alloy; hot deformation; work hardening; dynamic re-crystallization; martensitic......
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">This work demonstrates significant improvements in both the aging kinetics and precipitation hardening of an Al-Li-Cu alloy with the minor addition of Cd(0.06 at.%). The precipitation hardening effect... improve precipitation kinetics and therefore the age-hardening effect of Al-Li-Cu alloys.关键词:......
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金管材冷变形的真应力-应变曲线和加工硬化率曲线 Fig. 1 Curves of true stress-strain and work hardening rate of GH3625 superalloy tube 2.2 组织演变 图2所示为GH3625合金管材未变形的显微组织.由图2可知,热挤压GH3625合金管材经(1150 ℃,1 h,AC)固溶处理后的显微组织...]. 金属学报, 2010, 46(1): 57-61. SONG Ren-bo, XIANG Jian-ying, HOU Dong-po, REN Pei-dong. Behavior and mechanism of hot work-hardening for 316L stainless steel[J]. Acta Metallurgica Sinica, 2010, 46(1......
J. Cent. South Univ. (2017) 24: 1513-1521 DOI: 10.1007/s11771-017-3555-0 Evaluation of mobility impact on urban work zones using statistical models LIU Pei(刘培)1, ZHANG Jian(张健)1, QU Jun-rong(曲俊蓉)1..., China Central South University Press and Springer-Verlag Berlin Heidelberg 2017 Abstract: This work correlated the detailed work zone location and time data from the WisLCS system with the five-min......
