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公开(公告)号：US20090263269A1
公开(公告)日：2009-10-22
申请号：US12301707
申请日：2007-10-05
CPC分类号： C21D3/06 , C21D6/004 , C21D2211/001 , C21D2211/008 , C22C38/44
摘要： By focusing on the non-diffusible hydrogen that causes hydrogen embrittlement of austenitic stainless steel, the present invention provides an austenitic stainless steel in which the non-diffusible hydrogen is removed by maintaining the austenitic stainless steel in a vacuum of 0.2 Pa or less and heating at a heating temperature of 200° C. to 500° C. for 460 hours or less to remove the hydrogen (H) contained therein to a level of 0.00007 mass % (0.7 mass ppm) or less.
摘要翻译： 通过关注导致奥氏体不锈钢的氢脆化的非扩散性氢，本发明提供一种奥氏体不锈钢，其中通过将奥氏体不锈钢维持在0.2Pa以下的真空中并除去加热而除去不扩散氢 在加热温度200℃〜500℃，460小时以下，除去其中所含的氢（H）至0.00007质量％（0.7质量ppm）以下的水平。
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公开(公告)号：US20110139321A1
公开(公告)日：2011-06-16
申请号：US13057578
申请日：2009-07-17
申请人： Yukitaka Murakami , Yoji Mine , Toshihiko Kanezaki
发明人： Yukitaka Murakami , Yoji Mine , Toshihiko Kanezaki
CPC分类号： C22C38/44 , C21D6/004 , C21D2211/001 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/46 , C22C38/50 , C22C38/54 , C22C38/58
摘要： Disclosed are an austenitic stainless steel, and a hydrogenation method thereof, in which occurrence of fatigue cracks and growth of fatigue cracks are suppressed by charging the austenitic stainless steel with hydrogen.In particular, focusing on the amount of diffusible hydrogen and non-diffusible hydrogen, which cause hydrogen embrittlement in austenitic stainless steel, the fatigue strength characteristics of austenitic stainless steel are improved by bringing the amount of diffusible hydrogen and non-diffusible hydrogen contained in the austenitic stainless steel to 0.0030 wt % (30 wt ppm) or higher. The austenitic stainless steel is subjected to a thermal treatment at a heating temperature of 200 to 500° C. for up to 460 hours in a hydrogen environment. The hydrogen (H) contained in the austenitic stainless steel is brought thereby to 0.0030 wt % (30 wt ppm) or higher.
摘要翻译： 公开了一种通过用氢气填充奥氏体不锈钢来抑制疲劳裂纹的发生和疲劳裂纹的生长的奥氏体不锈钢及其氢化方法。 特别是关注在奥氏体不锈钢中引起氢脆的扩散氢和非扩散性氢的量，奥氏体不锈钢的疲劳强度特性通过使含有氢的可扩散氢和非扩散性氢的量得到改善 奥氏体不锈钢为0.0030重量％（30重量ppm）以上。 奥氏体系不锈钢在氢气环境下，在200〜500℃的加热温度下进行长达460小时的热处理。 奥氏体不锈钢中所含的氢（H）由此达到0.0030重量％（30重量ppm）以上。
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公开(公告)号：US20110005645A1
公开(公告)日：2011-01-13
申请号：US12919353
申请日：2009-02-09
CPC分类号： C22C38/40 , C21D3/06 , C21D6/002 , C21D6/004 , C21D9/00 , C21D9/28 , C21D9/30 , C21D2211/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/44
摘要： The present invention focuses on diffusible hydrogen and non-diffusible hydrogen that cause hydrogen embrittlement in an austenitic stainless steel, and provides the austenitic stainless steel having diffusible hydrogen and non-diffusible hydrogen removed therefrom, and a method for removing hydrogen therefrom. In order to remove diffusible hydrogen and non-diffusible hydrogen, which cause hydrogen embrittlement in the austenitic stainless steel, an aging treatment is performed to the austenitic stainless steel at a temperature ranging from 200 to 1100° C. while being kept in an air atmosphere. As a result, the hydrogen (H) content in the austenitic steel is removed to 0.001 wt % (1 wt ppm) or less.
摘要翻译： 本发明着重于在奥氏体不锈钢中引起氢脆的扩散氢和不扩散氢，并提供从其中除去可扩散氢和不扩散氢的奥氏体不锈钢，以及从其中除去氢的方法。 为了去除在奥氏体不锈钢中引起氢脆的可扩散的氢和不可扩散的氢，在200-1100℃的温度下对奥氏体不锈钢进行时效处理，同时保持在空气气氛中 。 结果，将奥氏体钢中的氢（H）含量除去至0.001重量％（1重量ppm）以下。
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