Creep resistant, precipitation-dispersion-strengthened, martensitic stainless steel and method thereof
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机译:耐蠕变性,沉淀分散增强的马氏体不锈钢及其方法
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摘要
An iron-based, corrosion-resistant, precipitation strengthened, martensitic steel essentially free of delta ferrite for use at high temperatures has a nominal composition of 0.05-0.1 C, 8-12 Cr, 1-5 Co, 0. 5-2.0 Ni, 0.41-1.0 Mo, 0.1-0.5 Ti, and the balance iron. This steel is different from other corrosion-resistant martensitic steels because its microstructure consists of a uniform dispersion of fine particles, which are very closely spaced, and which do not coarsen at high temperatures. Thus at high temperatures this steel combines the excellent creep strength of dispersion-strengthened steels, with the ease of fabricability afforded by precipitation hardenable steels.
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机译:用于高温的基本不含三角铁素体的铁基抗腐蚀,沉淀增强马氏体钢的标称成分为0.05-0.1 C,8-12 Cr,1-5 Co,0。5-2.0 Ni ,0.41-1.0 Mo,0.1-0.5 Ti和余量的铁。这种钢与其他耐腐蚀马氏体钢不同,因为它的微观结构由均匀分布的细小颗粒组成,这些颗粒的间距非常小,并且在高温下不会粗化。因此,在高温下,这种钢结合了分散强化钢的优异蠕变强度以及可沉淀硬化的钢所具有的易加工性。
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