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A new kind of magnesium alloys has been synthesized by high energy ball-milling of Mg and Fe mixed powders.Due to the high corrosion speed and reacting efficiency,the alloys are generally called super-corroding alloys.A SCA bulk is fabricated through cold-pressing and sintering the mechanically alloyed Mg-Fe powders.The chemical reaction of SCA with seawater rapidly releases heat and hydrogen gas,which may play very important roles in many ocean applications.For example,the reaction heat can be used to keep diver clothes warm;SCA corrosive links with the function of self-destruction can be utilized to control the sinking and floating of sonobuoy, and to salvage the training torpedo or other instruments.In addition,the reaction heat of SCA can be applied to heat food,machinery and ice or snow,which is thus very helpful for mountaineers.

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A mechanical or alloyed contact between different metals or other materials,as in a thermocouple.

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Its subject coverage includes: mathematical and computer modeling of crystal growth in alloyed and unalloyed aluminum; computer simulation and programs; and finite element method.

它的主題報(bào)導(dǎo)包括：合金與純鋁的晶體生長(zhǎng)的數(shù)學(xué)和計(jì)算機(jī)模型18禁无码高潮喷水；計(jì)算機(jī)模擬與程序；有限元素法8x在线视频。

The main production techniques and trail-manufacture of alloyed Aaustempered Ductile Iron and unalloyed ADI gears are introduced.

介紹了等溫淬火球鐵齒輪的主要生產(chǎn)工藝一级a姓爱免费视频，以及合金與非合金等溫淬火球鐵齒輪的試制應(yīng)用。

The role of elements can be identified by the valence electron structural parameters of a phase. It is of great importance to composition design of alloyed cast irons of this kind.

上述組織結(jié)構(gòu)變化規(guī)律可用"固體與分子經(jīng)驗(yàn)電子理論"解釋91精品一区综合在线观看，通過(guò)合金元素的價(jià)電子結(jié)構(gòu)確定其在合金中所起的作用国产ava片，這對(duì)于該類鑄鐵的合金化設(shè)計(jì)有重要的指導(dǎo)意義。

The melt treating techniques used for the production of low alloyed hi-strength gray iron and vermicular iron cylinder blocks and heads were summarized.

綜述了用作發(fā)動(dòng)機(jī)缸體缸蓋的低合金高強(qiáng)度灰鑄鐵和蠕墨鑄鐵的鐵液處理技術(shù)www.szfbsz.com。

The effects of the size,distribution and chemical composition of inclusions on nucleation of acicular ferrite in deposited metal s of micro-alloyed steel were studied.

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Correspondently, the fatigue strength of B-free bainitic steel is higher than that of B-alloyed bainitic steel.

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