论文部分内容阅读
对在中碳的Mn-Si系堆焊金属中加入Cr、Mo后形成的Mn-Si-Cr系、Mn-Si-Cr-Mo系堆焊金属进行了常规的化学分析、扫描电镜及能谱分析、X射线光谱分析,旨在明确Cr、Mo在堆焊金属中是以何种形式影响耐磨性能,并建立Cr、Mo与耐磨性之间的关系,最终寻找最经济的具有优良耐磨性的合金含量范围。结果表明,对于中碳的Mn-Si-or系及Mn-Si-Cr-Mo系,在所试验含量范围(Cr≤5.0%.Mo≤2.0%)内,Cr、Mo并不是以第二相的形式,而主要是以固溶态形式存在于基体中,同时在带冲击的磨料磨损条件下Cr对耐磨性作用明显,但有最佳含量范围,而Mo对耐磨性作用不明显。
The conventional chemical analysis of Mn-Si-Cr and Mn-Si-Cr-Mo based surfacing metals formed by adding Cr and Mo to medium-carbon Mn-Si based surfacing metals was carried out by scanning electron microscopy and energy dispersive spectroscopy Analysis, X-ray spectroscopy, designed to clear Cr, Mo in the surfacing metal is what form of wear resistance, and to establish the relationship between Cr, Mo and wear resistance, and ultimately find the most economical with excellent resistance Abrasion of the alloy content range. The results show that for the medium-carbon Mn-Si-or-Mn-Si-Cr-Mo system, Cr and Mo are not in the second phase in the range of the tested content (Cr≤5.0% .Mo≤2.0% , But mainly in the form of solid solution in the matrix, while under the impact of abrasive wear Cr wear resistance significantly, but with the best content range, and Mo on the wear resistance is not obvious.