Fe−Mn−Al precipitation-hardening austenitic alloys
Fe−Mn−Al precipitation-hardening austenitic alloys
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Fe−Mn−Al 沉淀硬化奥氏体合金
DOI：
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发表时间：
1969
期刊：
影响因子：
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通讯作者：
G. L. Kayak
中科院分区：
文献类型：
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作者：
G. L. Kayak
结论1.为了获得奥氏体结构和良好的物理化学性能，Fe-Mn-Al合金应含有8-10%的Al，25-30%的Mn和100%的C。合金经1150°C淬火、550°C时效16 h后，其力学性能为：σB=90-95 kg/mm 2，σ 0.2 = 80 - 85 kg/mm 2，σ 0.3 = 80 - 85 kg/mm 2，σ 0.4 = 80 - 85 kg/mm 2，σ 0.5 = 80 - 85 kg/mm 2，σ0.2=80-85 kg/mm 2，σ 0.5 =80-85 kg/mm 2，σ 0.5 = 80 - 85 kg/mm 2。δ=10-20%; ψ=15- 30%.3.最佳成分的合金密度为6.7-6.8 g/cm 3，强度远高于广泛使用的Cr-Ni钢10 Kh 2N 24或Mn-Al钢45G17Yu3.4。含8- 10%Al的合金具有与不锈钢1 Kh 17 N2相同的抗氧化性。
Conclusions1.To obtain an austenitic structure and good physicochemical properties Fe−Mn−Al alloys should contain 8–10% Al, 25–30% Mn, and ∼1% C. An increase of the aluminum content and decrease of the manganese and carbon content results in α-phase in the structure, which impairs the magnetic and plastic characteristics of the alloys.2.After quenching from 1150°C and aging 16 h at 550°C the alloys of the optimal composition have the following mechanical properties: σb=90–95 kg/mm2; σ0.2=80–85 kg/mm2; δ=10–20%; ψ=15–30%.3.Alloys of the optimal composition have a density of 6.7–6.8 g/cm3 and a substantially higher strength than the widely used Cr−Ni steel 10Kh2N24 or the Mn−Al steel 45G17Yu3.4.Alloys with 8–10% Al have the same oxidation resistance as stainless steel 1Kh17N2.