研究了未再结晶固溶处理对18Ni型无钴马氏体时效钢组织和拉伸性能的影响.研究结果表明,无钴马氏体时效钢经过未再结晶同溶处理后,马氏体形貌由块状转变为细小的条束状,拉伸断口上的韧窝明显变小变密;固溶态的硬度提高约3(HRC),抗拉强度提高约100 MPa;而时效态的硬度和强度提高幅度较小.
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