多物理场耦合作用下烧结颈长动力学模拟

doi:10.13228/j.boyuan.issn1006-6543.20190180

Abstract
Figure/Table
References
Related Citation (0)

Download: PDF (1791 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A fully coupled thermo-mechano-diffusional phase field model was presented to investigate the relationship between the driving force and the neck growth during solid sintering. It could be seen from the morphological evolution that the neck radius will increases gradually and the neck curvature decreases with the interface migration in the sintering process. Moreover，with the decreasing of total surface area of the system，and the pores become circular and reduce gradually. The simulation results show that the strain gradient coupling term play a domain role in the fully-coupled condition，and the effect of the temperature gradient coupling term is negligible. Finally， dynamic equations can be obtained by contrastive analysis among the change of neck growth rates and driving forces of neck growth. It indicateds that the neck growth rate is the product of the neck growth driving forces to the power of k0 and the physical parameters CM which relates to the diffusion mobility. And the neck growth driving forces is only related to the shape of neck，and has nothing to do with sintering speed and sintering process.

Key words： solid-phase sintering thermo-mechano-diffusional coupled diffusion driving force morphological evolution phase field method

Received: 30 August 2019

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	TAN Shulin
	ZHANG Xiaomin
	ZHAO Zhipeng
	WU Zhouzhi

Cite this article:

TAN Shulin,ZHANG Xiaomin,ZHAO Zhipeng, et al. Dynamic simulation of sintering neck growth with coupling multiple physical field[J]. Powder Metallurgy Industry, 2020, 30(06): 15-20.

URL:

http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20190180 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2020/V30/I06/15