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This study explores whether and how archival records can address the social oppression faced by Chinese immigrants through community engagement, with the aim of fostering transformative change within marginalized communities.

Guided by Paulo Freire’s concepts of generative themes and dialogue, this community-based qualitative case study engaged seven participants in a workshop that used archival materials about Chinese immigration history. Participants interacted with three groups of materials and had collective discussions. They reflected on their perceptions of the history and stories documented in the archival materials and further shared insights on the fairness of current immigration systems, as well as potential changes necessary for a more equitable immigration system.

The archival records activated dialogues in which participants expressed disappointment with historical and ongoing exclusion by the government. They critiqued social beliefs such as the expectation that Asians must conform to white normativity to be accepted in the United States. Participants explored the challenges facing the community, reflected on how their experiences resonate with the archival stories and identified the “cyclical oppression” of the Chinese immigrant community. I propose this process as “dialogue-based archives,” which engages marginalized community members in conversations through archival records, fostering mutual respect, active listening, sharing of lived experiences and critical reflection on oppression.

Dialogue-based archives effectively engage marginalized communities. It also constitutes rigorous scholarship, contributing to the field of Library and Information Science (LIS) by challenging the dominant white-elitist and Euro-Anglo-centric discourse within the field and highlighting the value of archival engagement work in addressing the needs of marginalized communities. It also specifically contributes to critical archival studies by providing grassroots insights into collection building and description.

The purpose of this paper is to study the corrosion behavior of Q235 steel in saturated acidic red and yellow soils.

The corrosion behavior of Q235 steel in saturated red and yellow soils was compared by weight-loss, SEM/EDS, 3D ultra-depth microscopy and electrochemical measurements.

R_p of the steel gradually increases and i_corr gradually decreases in both the red and yellow soils with time. The R_p of the steel in the red soil is lower, but its i_corr is higher than that in the yellow soil. The uniform corrosion rate, diameter and density of the corrosion pit on the steel surface in the red soil are greater than those in the yellow soil. Lower pH, higher contents of corrosive anions and high-valence Fe oxides in the red soil are responsible for its higher corrosion rates and local corrosion susceptibility.

This paper investigates the difference in corrosion behavior of carbon steel in saturated acidic red and yellow soils, which can help to understand the mechanism of soil corrosion.