钢材检测

解决方案

标准解读

检测项目类别:

推荐厂商:

岛津企业管理(中国)有限公司 岛津
朗铎科技(北京)有限公司 朗铎
北京欧波同光学技术有限公司 欧波同
安捷伦科技(中国)有限公司 安捷伦
杭州谱育科技复纳科学仪器艾捷克科技瑞绅葆天津徕科光学赛默飞电镜(原FEI)北京普瑞赛司英斯特朗林赛斯安东帕青岛盛瀚QUANTUM量子科学赛默飞标乐柳本海能技术PerkinElmer天氏欧森FLIR仪景通光学科技上海新仪赛默飞元素分析Gamry理化香港有限公司爱万提斯欧兰科技翁开尔奥龙集团人和科仪力可公司星帆仪器武汉科思特仪器
重置
全部品牌

检测项目:

参考标准:

X65管道钢中在油/水乳液的电化学腐蚀检测方案(电化学部件)

The electrochemical corrosion behavior of X65 pipeline steel in the simulated oil/water emulsion was investigated under controlled hydrodynamic and electrochemical conditions by rotating disk electrode technique. Results demonstrated that mass-transfer of oxygen plays a significant role in the cathodic process of steel in both oil-free and oil-containing solutions. Electrode rotation accelerates the oxygen diffusion and thus the cathodic reduction. The higher limiting diffusive current density measured in oil-containing solution is due to the elevated solubility of oxygen in oil/water emulsion. The anodic current density decreases with the increase of electrode rotating speed, which is attributed to the accelerated oxygen diffusion and reduction, enhancing the steel oxidation. Addition of oil decreases the anodic dissolution of steel due to the formation of a layer of oily phase on steel surface, increasing the reaction activation energy. The steel electrode becomes more active at the elevated temperature, indicating that the enhanced formation of oxide scale is not sufficiently enough to offset the effect resulting from the enhanced anodic dissolution reaction kinetics. The corrosion reaction mechanism is changed upon oil addition, and the interfacial reaction is activation-controlled, rather than mass-transfer controlled. When sand particles are added in oil/water emulsion, there is a significant increase of corrosion of the steel. The presence of sands in the flowing slurry would impact and damage the oxide film and oily film formed on the steel surface, exposing the bare steel to the corrosive solution.
检测样品: 钢材
检测项: 可靠性能

理化(香港)有限公司

查看联系电话
前往展位

钢板、钢筋、钢条、管材中不锈钢分析检测方案(激光诱导击穿)

测试设备面临的挑战:在过去,XRF (x 射线荧光)和 OES (光发射光谱)都可用于物料验证。在早期的测试作业中,只有实验室配备了物料验证所需的各种仪器。然而,随着实验室技术的小型化,工艺过程中测试和现场测试已经成为现实。 碳(C)是一种重要的合金元素,常常被添加到不锈钢中以增加其硬度和强度。迄今为止,碳的分析一直是一个具有挑战性的工作。最流行的物料验证方法是采用手持式 X 射线荧光(XRF),但其无法检测碳含量。光学发射光谱法(OES)可以检测碳,但需要依托于大型笨重的推车,这也限制了其在棘手的环境中(梯子、狭小通道、沟渠、狭窄的空间等)的应用。 根据不锈钢的等级,碳当量要求在 0.005% 至 1.2% 之间。在某些不锈钢中,不允许碳含量过高,尤其是由于碳化物沉淀而可能威胁焊接性时。由于这些原因,碳含量的测定对于随时间推移全面验证等级和安全操作至关重要。 Niton Apollo 手持式 LIBS 分析仪:现在,我们成功推出新的工具可供专业人员进行物料检验。Thermo Scientific™Niton™Apollo™ 手持式 LIBS 分析仪利用激光诱导击穿光谱技术(LIBS)在生产过程中对物料进行检验。Niton Apollo 分析仪重量仅为 6.4 磅(2.9 千克),专门用于提供方便、便携式碳含量检测方案– 在许多情况下,无需使用笨重的光学发射光谱(OES)推车。Niton Apollo 分析仪具有高效的激光和高纯度的氩气吹扫功能,可以确认或更新错误的MTR 报告,消除与焊接操作时不兼容合金相关的风险,甚至可以区分相似等级的合金。
检测样品: 钢材
检测项: 理化分析

赛默飞世尔科技分子光谱

查看联系电话
前往展位
< 1 2 3 ··· 7 > 前往 GO

仪器信息网行业应用栏目为您提供191篇钢材检测方案,可分别用于其他检测,参考标准主要有等