1.1.3影响点蚀的因素点蚀受材料因素(合金成分、表面状态、金属的本质、冷加工、热处理、显微组织等)和环境条件(环境介质成分、温度、PH值、介质流速、极化电位等)共同作用的影响。(1)材料因素的影响首先金属本性与合金元素对点蚀敏感有着重要的影响,具有自钝化特性的金属或合金对点蚀敏感性较高。研究表明:处于钝态的...
Effects of heat treatment (aging and overaging) and build orientations on the fatigue life of Selective Laser Melted (SLM) 15-5 precipitation hardening (PH) stainless steel are reported. Low cycle fatigue (LCF) life of aged specimens is better than specimens in as-built condition for both ...
第5 期 仇振安,等: 热处理工艺对 15-5 PH 不锈钢组织和力学性能的影响 81 图5 不同固溶冷却方式对 15-5 PH 钢显微组织的影响( 1040 ℃× 55 min 固溶,480 ℃× 1 h 时效) ( a) 油冷; ( b) 热水冷; ( c) 空冷 Fig . 5 Effect of so lut ion c o oling way on mic r ostr ucture ...
某产品部分零件采用PH15—5沉淀硬化不锈钢制造,时效原采用井式空气循环电炉,井式空气循环电炉炉温均匀,加工的零件力学性能一致性好,但零件表面会氧化变色形成蓝色氧化膜,这种氧化膜较薄,只有几十到几百埃,对尺寸一般没有影响,但对其后序的表面处理工艺会造成一定影响,为解决此问题,进行了时效工艺试验研究。 1 试验 ...
steel designed to have greater toughness than17-4 PH stainless steel. It is used in applications requiring better corrosion resistance and transverse properties compared to other similar martensitic grades. The strength and toughness desired can be altered by the temperate range in theheat treatment...
Product Name gh3030 15-5ph 17-7 ph stainless steel cold rolled steel strips 17-4ph Type Hot Rolled, Cold Drawn, Oil Tempered, Heat Treatment Standard GB, AISI, ASTM, DIN, EN, SUS, UNS Thickness 0.04-10mm Width 5-2000mm Price Item EXW, FOB, CIF, CFR, DDP e...
In this study, the corrosion resistance mechanism of the Te and heat treatments on martensitic stainless steel (15–5PH steel) was investigated. Heat treatment affected the dislocation density of the Te-containing 15–5PH steel and reduced its corrosion tendency. Electrochemical dissolution of the MnS...
Stainless steel 15 – 5 PH, also known as XM-12 or UNS S15500, is a modification of 17-4 PH developed in the 1960s. It has a more refined microstructure obtained through the remelting process.
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PH. Both inclusion control and a minimized amount of delta ferrite as compared to 17-4 stainless steel contribute to the greater toughness of 15-5. The alloy is further strengthened by a low temperature heat treatment which precipitates a copper containing phase in the alloy. 15-5 PH is ...