求大神专业翻译机械类外文翻译一段

求大神专业翻译机械类外文翻译一段
IntroductionDuplex stainless steels are a combination of austenite and fer-rite, and some grades employ nitrogen as an alloying ingredientwhich promotes austenite formation in welds and improves tough-ness. In standard laser welding, using argon as the shield gas,nitrogen can be lost from the weld pool and the austenite con-tent of the weld will be reduced. Kyröläinen and Lukkari (1999)and the Outokumpu welding handbook (Outokumpu, 2010) havenoted that a low austenite content can lead to nitride precipita-tion, which has a negative effect on weld corrosion properties andtoughness. It has been noticed by Keskitalo and Mäntyjärvi (2013) thatnitrogen shielded austenitic laser welds have a higher hardnessthan argon shielded welds. Westin and Serrander (2012) have notedthat using nitrogen as the backing gas had a measurable positiveeffect on the weld metal austenite formation when welding with CO2 lasers.This paper investigates the idea that if nitrogen is used as theshield gas some of it would dissolve into the weld pool, compen-sating for the amount lost by evaporation. Kyröläinen et al. recommend the WRC-92 diagram for duplexweld material. The presence of nitrogen promotes the formation of austenite in duplex stainless steels according to the followingequations (Kyröläinen and Lukkari, 1999):Ni-equivalent (Ni eq)=%Ni+(%C×35)+(%N×20)+(%Cu×0.25)(1)Cr-equivalent (Cr eq)=%Cr+%Mo+(%Nb×0.7) (2)

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Introduction Duplex stainless steels are a combination of austenite and fer-rite, and some grades employ nitrogen as an alloying ingredient which promotes austenite formation in welds and improves tough-ness.
介绍了双相不锈钢是一种由奥氏体和铁的仪式,有的年级使用氮作为合金成分,促进奥氏体的形成和提高焊缝的韧性.
In standard laser welding, using argon as the shield gas,nitrogen can be lost from the weld pool and the austenite con-tent of the weld will be reduced.
在标准的激光焊接,使用氩气作为保护气体,氮气可以从熔池失去和焊接的奥氏体含量会降低.
Kyröläinen and Lukkari (1999)and the Outokumpu welding handbook (Outokumpu, 2010) have noted that a low austenite content can lead to nitride precipita-tion, which has a negative effect on weld corrosion properties and toughness.
kyr的öLä惰性和Lukkari（1999）和奥托昆普公司焊接手册（奥托昆普,2010）指出,一个低的奥氏体含量可导致氮化物沉淀,具有焊缝腐蚀性能和韧性的影响.
It has been noticed by Keskitalo and Mäntyjärvi (2013) that nitrogen shielded austenitic laser welds have a higher hardness than argon shielded welds.
它已经被凯斯基塔洛和MäntyjäRVI（2013）注意到,氮气保护奥氏体激光焊接具有较高的硬度比氩焊.
Westin and Serrander (2012) have notedthat using nitrogen as the backing gas had a measurable positiveeffect on the weld metal austenite formation when welding with CO2 lasers.
威斯汀酒店和serrander（2012）指出,使用氮气作为后盾的气体对焊缝金属的奥氏体形成焊接时用CO2激光器的一个可衡量的积极作用.
This paper investigates the idea that if nitrogen is used as theshield gas some of it would dissolve into the weld pool, compen-sating for the amount lost by evaporation.
本文研究的想法,如果使用氮气作为掩护气体会溶解在熔池,补偿蒸发掉的量.
Kyröläinen et al. recommend the WRC-92 diagram for duplex weld material. The presence of nitrogen promotes the formation of austenite in duplex stainless steels according to the following equations (Kyröläinen and Lukkari, 1999):Ni-equivalent (Ni eq)=%Ni+(%C×35)+(%N×20)+(%Cu×0.25)(1)Cr-equivalent (Cr eq)=%Cr+%Mo+(%Nb×0.7) (2)
kyr的öLä惰性等.推荐的双面焊接材料的wrc-92图.氮的存在促进了双相不锈钢中奥氏体的形成根据下列方程（KYRöLä惰性和Lukkari,1999）：Ni当量（Ni当量）= %的Ni +（%的C×35）+（%N×20）+（%的Cu×0.25）（1）Cr等效（CR EQ）= %的Cr Mo +（铌×0.7）（2）