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Ca2Mg6Zn3, Mg2Ca, Mg51Zn20 and MgZn2 are detected. LEVI et al[11] suggested that Ca2Mg6Zn3 is more stable than Mg2Ca at lower temperatures (<350 ℃), and the age hardening response of the Mg-Ca-Zn alloys... precipitates such as MgZn2 or Ca2Mg6Zn3. Fig.6 DSC curves for Mg-Zn-xCa alloys 3.4 Age hardening response The microhardness changes of the as-quenched flakes after isochronal aging for 1 h......
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于两相区的软化效应. 图7 TC21G合金的应变硬化指数n的曲线 Fig. 7 Curves of strain hardening exponents n of TC21G titanium alloy 由图7可知,当变形温度一定时,应变速率的增加会使应变硬化指数n值略微变小.TC21G钛合金在应变速率较高(1 s-1) 的条件下变形,单位时间内累积的位错密度增加,导致...应更明显. REFERENCES [1] LUO J, GAO J, LI L, et al. The flow behavior and the deformation mechanisms of Ti-6Al-2Zr-2Sn-2Mo-1.5Cr-2Nb alloy during isothermal compression[J]. Journal of Alloys and Compounds......
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......
-hardening effect of Al-Zr-Cr, Al-Zr-Yb, Al-Cr-Yb, Al-Zr-Cr-Yb alloys and inhibit- recrystallization ability of different kinds of dispersoids in these alloys were compared. The results show that the high... size and higher degree of dispersion of coherent Cr-containing Al3(Zr,Yb) dispersoids. Key words: Al-Zr-Yb-Cr alloys; precipitation; recrystallization; hardening 微合金化是挖掘铝合金潜力,改善合金性能的重要途径之一,也是新型铝合金研发的主......
for predicting the strength of the Cu alloy falls between 200 and 1400 MPa. The hardness and strength values of the Cu alloys in Ref. [13] were processed by solid solution strengthening, precipitation hardening... microstructure with an increase in dendrites. The strain hardening coefficient of the deposited copper composite obtained in this experiment is 3.35. Key words: copper composites; laser metal deposition......
for desired criteria. Key words: laser transformation hardening; response surface methodology (RSM); unalloyed titanium; titanium; hardened-bead profile 1 Introduction Titanium and titanium alloys... to permit full transformation of the titanium and its alloys to transform beta (martensites, alpha) or to retain beta to room temperature[6-7]. The standard laser transformation hardening of titanium......
Magazine Letters. 2001, 81(10): 709-718. [7] Mendis C, Bourgeois L, Muddle B, Nie J F. Effects of Ca additions on microstructures, age hardening response and creep behaviour of Mg-8Zn-4Al casting alloy... Solidification microstructural constituent and its crystallographic morphology of permanent-mould-cast Mg-Zn-Al alloys ZHANG Jing(张 静)1, 2, LI Zhong-sheng(李忠盛)1, GUO Zheng-xiao2, PAN Fu-sheng(潘复生......
of continuous columnar-grained copper and copper alloys[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(10): 2324-2336. [3] 胡 炜, 王彦红, 赵小军, 肖来荣, 饶 博, 章 玮. 热型连铸铝线的制备及其显微组织和性能[J]. 中国有色金属学报, 2015, 25(7... hardening stage (ε≤4.13), low hardening rate stage (4.13≤ε≤10.16). Some submicron equiaxed grain forming stage (ε≥10.16). Each stage of the plastic deformation behavior is different and has its own......
solution, which has a passive function for further corrosion. The noble copper subsurface experiences strain hardening during the corrosion and wear, resulting in the increase of the surface hardness thus the increase in wear resistance. ⊙ Key words: Al-bronze; corrosion; friction; wear; strain hardening⊙  ......