热处理对AuCuPtPdNiRh合金显微组织的影响(英文).doc

热处理对AuCuPtPdNiRh合金显微组织的影响(英文).doc2014年11月
第35卷第S1期
Nov. 2014
Vol. 35, No. SI
贵金厘
Precious Metals
Effects of Heat Treatment on the Microstructures of
AuC uP tPdNiRh Alloys
ZHANG Kuiihua1' \ CHEN Yiizeng1, GENG Yongliong2, BI Jun2, KONG Jianwen2
(1. State Key Laboratoiy of Solidification Processing, Northwestern Polyteclmical University. Xi'an 710072, Cliiiia:
2. State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,
Kunming Institute of Precious Metals, Kiuimiiig 650106, China)
Abstract: The microstinctiires of Au-based alloy were investigated for the as-casted state, solution heat treated at 750°C for 1 h, 850°C for 4 h, and 950°C for 1 h? and unifonn heat treated at 950 °C for 4 h by metallurgical stincture examination, differential thennal analysis (DSC), X-ray difliaction (XRD), scanning electron micrograph (SEM) and energy spectnim analysis (EDS). Tliis Au-based alloy is composed of Au(Cu, Pd). Pt(Rli. Ni). and the mixture of botli・ With the heat treated temperature elevated, Pd solute segregated from the mixtures. AuCu3 phase with Lb stnictiire fbnned as heat treated at 700°C. 850°C,and950 °C.
Key words: metals materials: heat treatment; AuCuPtPdNiRli alloy; micros tincture; solution: ordered-disordered
CIF number: Document Code: A Article ID: 1004-0676(2014)S 1 -0049-08
热处理对AuCuPtPdNiRh合金显微组织的影响
张昆华I,陈豫增\耿永红・毕垢・孔建稳?
(1 •西北工业大学凝固技术国家重点实验室