结合理论分析认为：硅元素分布微观不均匀性导致了自旋玻璃出现，而自旋玻璃是宽温区负热膨胀行为的内在原因。
After theoretical analysis, it is concluded that spin-glass which results from the hyperdispersion of si at micro scale is the reason for the broadening of the NTE operation-temperature window.
结果表明：回火索氏体是最佳的组织形态；微观硬度的不均匀性显著影响钢的表面加工质量。
The results indicated that the tempered sorbite was the optimum microstructure, the inhomogeneous distribution of micro hardness affected markedly the finish quality of the steel surface.
结果表明：回火索氏体是最佳的组织形态；微观硬度的不均匀性显著影响钢的表面加工质量。
The results indicated that the tempered sorbite was the optimum microstructure, the inhomogeneous distribution of micro hardness affected markedly the finish quality of the steel surface.
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