While the hardness of the base material was about 265 HV, the maximal hardness in the fusion zone exceeded 310 HV and increased with an increase of the welding speed. Yield and tensile stength were however not dramatically influenced. On the other hand, the formability properties were ...
相关学者已对异种金属焊接进行过深入研究,文献[1]对手工焊接2205双相不锈钢接头进行1050℃固溶处理,随后在850℃进行不同保温时间的时效处理。发现焊后1050℃固溶处理可有效改善2205双相不锈钢焊接接头的组织和性能;在850℃时效处理后,母材区、焊缝区和热影响区均有σ相沿铁素体与奥氏体晶界析出。文献[2]对船用双相...
ＳＡＦ２５０７双相不锈钢与Ｑ２３５碳钢异种金属板材的焊接＊ 奇３ 伟４ 摘要：将切割的Ｑ２３５钢板和ＳＡＦ２５０７双相不锈钢板分为４组，采用ＺＸ７－４００ＩＧＢＴ逆变式直流弧焊机和Ａ３０２ 奥氏体不锈钢焊条进行焊接，并对焊前和焊后板材做微观组织分析及显微硬度分析。研究表明，在焊接电流为９０Ａ～...
[10] Henrik Sieurin,Rolf Sandtrom. Sigma phase precipitation in duplex stainless steel 2205[J]. Material Science an Engineering A,2007, 444: 271-276. [11]侯瑞鹏,任万里. 热处理对 2205 双相不锈钢耐腐蚀性能的影响 [J]. 山西冶金,2004( 3) : 24-26.相关...
Fig.2 Optical microstructure of base material of the HAZ after different t12/8 双相不锈钢中铁素体α和奥氏体γ两相比例及其组织形态对力学性能有着极其重要的影响,因此研究SAF2507焊缝组织中的双相比例十分必要。SAF2507钢热影响区中奥氏体相含量随t12/8冷却时间的变化走势如图3所示。可以看出,随着冷却时间t12...
Ni is added to increase the toughness of the material. Low N contents are able to increase mechanical strength and resistance to pitting corrosion [12]. An appropriate balance between these elements allows the two phases to be equally distributed and optimize the properties of DSS [13]. The ...
Ss 2205 2507 Super Duplex Stainless Steel Pipe and Tube, Find Details and Price about Stainless Steel Pipes Material Steel 316 from Ss 2205 2507 Super Duplex Stainless Steel Pipe and Tube - Zhejiang Zhong Ding Iron and Steel Co., Ltd.
While the hardness of the base material was about 265 HV, the maximal hardness in the fusion zone exceeded 310 HV and increased with an increase of the welding speed. Yield and tensile stength were however not dramatically influenced. On the other hand, the formability properties were ...
In order to maximise the life expectancy of these DSS steels, it has been found that transition metal ceramics such as TiN present an opportunity to enhance the chemical and physical properties of these types of materials given that TiN is well known to have high hardness (>24.7 GPa). More...
The wear behavior of cast A7075 and A7075/SAF 2205 composite material fabricated by vacuum-assisted investment flask casting was investigated under dry sliding condition. The wear tests were carried out using a "ball-on-disc" type tribometer. In the wear tests, 100Cr6 and ZrO2balls were used ...