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Trans. Nonferrous Met. Soc. China 23(2013) 1595-1601 Extrusion and precipitation hardening behavior of AZ91 magnesium alloy M. THIRUMURUGAN, S. KUMARAN Department of Metallurgical and Materials... °C, respectively with extrusion ratio of 4:1 followed by precipitation hardening treatment (T6). The coarse and segregated Mg17Al12 intermetallic precipitate in AZ91 magnesium alloy was refined......
Trans. Nonferrous Met. Soc. China 24(2014) 2326-2330 Precipitation hardening behavior of dilute binary Al-Yb alloy Chao-lan TANG1, De-jing ZHOU2 1. College of Electromechanical Engineering, Guangdong... Abstract: The precipitation hardening behavior in dilute Al-Yb alloys upon annealing at different temperatures was investigated to shed light on the mechanism of micro-alloying element in aluminum alloys......
">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:......
-silicon-copper alloys are enhanced through precipitation hardening. The response of these alloys to age-hardening is very slow. To overcome this problem, 0.2, 0.4 and 0.7 wt.% magnesium were added to Al-10.5Si-3.4Cu alloy. The new alloys were subjected to two types of precipitation hardening processes different in the solutionizing stage. The results showed that the presence of various amounts......
Secondary hardening behavior of 15CrMnMoV thin rolled tubeCi DING and Weixin HAN Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China摘 要:15CrMnMoV rolled tube is applied to many critical parts of helicopter. The secondary hardening behavior of the steel which varied with the treating process is essential for further usage......
and large forging is caused by the secondary phase precipitation from the transformed β above 830 ℃. The precipitation strengthening effect on the little bar is smaller than that of the large forging because of the recrystallization softening effect. Key words: TA15 titanium alloy; heat treatment; deformation degree; recrystallization; precipitation hardening TA15钛合金具有中等的室温强度,优良的高温性能和焊接性能,并可制成各种半成品,如棒材......
and distribution, a calculation based on Orowan mechanism shows that the precipitation hardening offers 166 MPa yielding strength increase. The precipitation sequence is as follows: TiN, TiC, NbC, NbN. Key words: DH36; carbides; carbonitrides; precipitation hardening; precipitation thermodynamic DH36级船板钢属于高强度船体结构用钢,具有强度高,低温冲击韧性佳,焊接性能良好等特点,在造船工业中应用广泛[1-2].目前,国内外工业级高强度船板钢普遍采用控轧控冷和微合金化有机结合的方法细化铁素体晶粒并析出第二相粒子,以提高其力......
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Cooling Curve''s Effect on Hardening Behavior of Steel Shigeru Asada1,Kazuto Fukuhara1,Syusaku Maeda1,Yoshihiro Tomita1 (1.Nippon Grease Co., Ltd. Osaka, Japan) 摘要:Quenching Oils are comprised... curve(1), it is possible to provide higher quench hardening performance using quenching oil formulated of adequate additives. 关键词:Quenching Oil; Cooling performance; Additive; Hardening performance......
