Research on Fe-Si-Mn-Cr alloy

奥地利铁-Si-锰-铬合金已被调查。铁氧基铁二进制合金的延伸是显而易见的，特别是在5wt%Si含量中，在3wt%Si含量中。此现象的出现是由<alpha>brittle_1或<alpha>_2 phases引起的。如果增加了15- 20重量%的锰，延长增加到15- 20%，这种合金显示出正常值的张力强度;约70 kgf/mm^2，耐高温和抗腐蚀的特性只是比普通碳钢更高的一点。由于增加了约7重量%的铬，不仅是拉伸强度和延长，而且还大大提高了抗热能力和抗腐蚀性能。举例来说，拉伸强度和长度显示为120- 150 kgf/mm^2，大约50%用于铸造，大约90 kgf/mm^2，95%用于锻造。远距离，影响值（U形）为390公斤·米/厘米^2。这些结果的协调在金属中是超棒的。

Austenitic Fe-Si-Mn-Cr alloy was investigated. The elongation of ferritic Fe-Si binary alloy decreases remarkablly ouer 3wt% Si content, especially in 5wt% Si content. The appearance of this phenomenon is due to precipitation of brittle <alpha>_1 or <alpha>_2 phases. By addition of 15-20wt% Mn, elongation increases up to 15-20%, however tensile strength of this alloy shows ordinary value; about 70kgf/mm^2 and the properties of heat-resistance and anti-corrosion are only a little superior than the plain carbon steel. By the addition of about 7wt% Cr, not only the tensile strength and elongation but also properties of the heat-resistance and anti-corrosion are much inproved. For example, tensile strength and elongation showed 120-150kgf/mm^2 and about 50% espectively for casting, about 90kgf/mm^2 and 95% espectively for forging. Furthermore, impact value (U notch) is 390kg・m/cm^2. The coordination of these results is ultra super in metals.