【摘要】 <正> 本文对工业用Ni-Cr-Mo-V多元系中碳钢进行合金元素的沉淀行为及其与性能关系的研究。Contractor于1961年曾研究5％Cr-Mo-V钢,得到了一些重要数据和规律.但由于样品组成、元素含量和热处理条件不同,与本文获得的数据更多还原

【Abstract】 Only （V, Mo）C carbide remains in specimens queched from 820—870℃, the solution of it begins at 870℃ and stops at 920℃. While tempering at 400 to 700℃, the precipitates of Mo, V, Cr and Mn increase with increasing temperature and the maxinm amount of Mo, V precipitates was found at about 600℃, corresponding change of mechanical properties occurs above this temperature. However, the precipitation of Fe decreases at the temperature range of 500 to 700℃. Cr-rich M₃C was observed at 700℃.更多还原