Significant Precipitation Strengthening in Extruded Mg‐Sn‐Zn Alloys
Significant Precipitation Strengthening in Extruded Mg‐Sn‐Zn Alloys
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DOI：
10.1007/978-3-319-48231-6_75
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发表时间：
2014-02
期刊：
影响因子：
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通讯作者：
T. Sasaki;F. Elsayed;T. Nakata;S. Kamado;T. Ohkubo;K. Hono
中科院分区：
文献类型：
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作者：
T. Sasaki;F. Elsayed;T. Nakata;S. Kamado;T. Ohkubo;K. Hono
研究了挤压速度和T6处理对Mg-5.4Sn-4.2Zn-2.1Al-0.2Mn（TZAM 5420）和Mg-5.4Sn-4.2Zn-2.1Al-0.2Mn-0.1Na（TZAM 5420 -0.1Na）合金强度的影响。特别地，以5 mm/s挤压的TZAM 5420 -0.1Na合金在T6处理后表现出334 MPa的屈服强度，这比挤压态合金的屈服强度高出170 MPa以上。T6时效态TZAM 5420 -0.1Na合金的高强度归因于固溶处理过程中细小析出相的均匀分散和晶粒长大受到抑制。
Mg-5.4Sn-4.2Zn-2.1Al-0.2Mn (TZAM5420) and Mg-5.4Sn-4.2Zn-2.1Al-0.2Mn-0.1Na (TZAM5420-0.1Na) alloys were extruded at various ram speeds, and the effect of the ram speed and T6 treatment on the strength was investigated. Particularly, the TZAM5420-0.1Na alloy extruded at 5 mm/s exhibited a yield strength of 334 MPa after the T6 treatment, which is more than 170 MPa higher than that of the as-extruded alloy. The high strength of the T6 aged TZAM5420-0.1Na alloy is attributed to the uniform dispersion of the fine precipitates and suppressed grain growth during the solution treatment.