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英语翻译It is clear from the previous published literature and i

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英语翻译
It is clear from the previous published literature and industrial applications that the 12% Cr type of steels had not achieved its full potential so far,because the possible alloy combinations were not
fully understood.And usually weldability is not concerned a lot,since 3Cr12 was mainly used for applications without welding.There is limited weldability data in the published literature.EN
1.4003 steel is modified from conventional 3Cr12 stainless steel by decreasing the C content to well below 0.03% which is regarded as the limit for low carbon steels to improve the weldability.Also,
the amount of titanium is limited,because titanium tends to form brittle carbide phases in the HAZ of a welded joint.Advanced steel making technology now enables tight control of composition and
can provide extremely low levels of carbon and nitrogen with significant improvement in the as welded HAZ properties,as well as the reduction of chromium carbides which degrade corrosion performance.
Modified X2CrNi12 stainless steel still conforming to grades 1.4003 in EN 10088-2 and EN 10028-7 and UNS S41003 in ASTM A240,with a quite low carbon level of 0.01% enhancing
the weldability and mechanical properties has recently been produced.This modified 12% Cr low carbon ferritic stainless steel provides an alternative which displays both the advantages of
stainless steels and engineering properties of carbon steels.In case attention is paid for using the correct welding parameters to ensure good joint integrity,this combination opens up a wide range
of applications.Initial applications of these 12% Cr stainless steels were consisted of materials handling equipment in corrosive environments,but the 1.4003 type of steels are now extensively used in the coal and gold mining industry,for sugar processing equipments,road and rail transport,power generation,for petrochemical,metallurgical,pulp and paper industries and in aerospace
engineering.Although it has higher initial cost,modified X2CrNi12 stainless steel provides lower total life costs due to longer life with less coating renewals and lower maintenance offering significant
economic and environmental advantage with regard to carbon steels.For other applications,it would be more economical compared to higher alloyed stainless steels [3,14–18,22,29–49].
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从之前出版的文化与工业应用杂志中就很清楚的看到12%的含铬钢铁目前还没有完全发挥其潜能,因为允许的合金组合方式没有被完全理解.并且通常焊接性也密友得到足够的关注,直到3Cr12在无焊接领域的应用.在现有的出版书中相关焊接性信息很有限.EN1.4003钢是常规的3Cr12不锈钢通过降低其碳含量低于0.03%合成的,并且这个值被看成已经是降低碳含量来达到改善焊接性的极限了.同时钛的含量也是有限的,应为钛在焊接点的热影响区域会倾向形成脆的碳化层.先进的钢炼制技术可以做到严密的成分控制,并且焊接点的热影响区域的显著改善的可以提供极端低级别的碳和镍的含量,同时减少碳化铬的含量以减少腐蚀性.改进了的X2CrNi12 不锈钢仍然符合EN1.4003,10028-7 和ASTM A240 的UNS S41003标准,以其非常低的0.01%碳含量和增强的焊接性能和机械性能被目前广泛生产.这种改进了的含有12%Cr的低碳铁素体不锈钢提供了双层优越性,既体现出不锈钢性有体现出碳钢的良好机械性.如果在选择恰当的焊接环境以确保良好的焊接点,那么这种结合产物的应用领域将很广.这些12%的Cr不锈钢初始是应用是充当腐蚀环境是红的支撑设备材料,但是1.4003类型的钢材被推广引用到煤与金矿工业领域,制糖设备,公路铁路运输,能源生产,石油化,冶金,造纸工业以及航天工程.尽管他的成本很高,改进的X2CrNi12不锈钢可以控制较低的生产周期成本,通过更少的涂料续费,以及与碳刚相比只需提供较低的维护,和显著的经济以及环境优势.与其他的合金不锈钢[3,14–18,22,29–49]相比它将是很经济的.