焼結−時効処理後に高強度が得られる析出硬化型ステンレス鋼粉末およびその製造方法並びにその成形体

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专利权人:

山陽特殊製鋼株式会社

发明人:

池田 裕樹,永富 裕一

申请号：

JP20140052499

公开号：

JP6270563(B2)

申请日:

2014.03.14

申请国别(地区):

日本

年份:

2018

代理人:

摘要：

PROBLEM TO BE SOLVED: To provide a precipitation hardening stainless steel powder obtaining high strength even when aging as a sintered body, a manufacturing method thereof and a molded body thereof.SOLUTION: There is provided a precipitation hardening stainless steel powder containing, by mass%, C:≤0.05%, Si:≤1.0%, Mn:≤1.5%, Ni:3.0 to 8.5%, Cr:12.0 to 20.0%, Mo:0.1 to 2.5%, Cu:1.0 to 5.0%, Nb+Ta≥5C, N:≤350 ppm and the balance Fe with inevitable impurities and consisting of powder of precipitation hardening stainless steel where a martensite structure contained in a sintered body consisting of the steel powder is 90% or more. Ni-bal.=Ni+27C+23 N+0.2Mn+0.3Cu-1.2(Cr+Mo)-0.5Si-0.3 Nb+10 (1).

来源网站：

中国工程科技知识中心

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http://www.ckcest.cn/home/