Metallic and other inorganic coatings — Pretreatment of iron or steel to reduce the risk of hydrogen embrittlement
金属和其他无机涂层——对铁或钢进行预处理以降低氢脆风险
发布日期:
2007-11-06
ISO 9587:2007制定了高强度钢的应力消除要求,以降低其在后续预处理、电镀、自催化电镀、化学转化和磷化过程中对氢脆的敏感性或敏感性程度。本国际标准适用于性能不受190°C至230°C或更高温度热处理不利影响的钢(见6.2)。
ISO 9587:2007中建立的热处理程序已被证明可有效降低抗拉强度等于或大于1000MPa且在热处理后经过机加工、研磨、冷成型或冷矫直的钢的敏感性。该热处理程序在能够使部件充氢的任何操作之前使用,例如电镀、自催化电镀和其他化学涂层操作之前的清洁程序。ISO 9587:2007不适用于紧固件。
ISO 9587:2007 establishes stress-relief requirements for high strength steels, in order to reduce their susceptibility or degree of susceptibility to hydrogen embrittlement in subsequent pretreatment, electroplating, autocatalytic plating, chemical conversion and phosphating processes. This International Standard is applicable to steels of which the properties are not adversely affected by heat treatment at 190 0C to 230 0C or higher (see 6.2).
The heat treatment procedures established in ISO 9587:2007 have been shown to be effective in reducing the susceptibility of steel having tensile strengths equal to or greater than 1 000 MPa and that have been machined, ground, cold-formed or cold-straightened subsequent to heat treatment. This heat treatment procedure is used prior to any operation capable of hydrogen charging the parts, such as the cleaning procedures prior to electroplating, autocatalytic plating and other chemical coating operations.
ISO 9587:2007 does not apply to fasteners.